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245 vulnerabilities
CVE-2026-103585 (GCVE-0-2026-103585)
Vulnerability from cvelistv5 – Published: 2026-09-30 22:17 – Updated: 2026-10-01 15:54
VLAI
EPSS
VEX
Title
attacker-controlled javascript license URL via XSS
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki MediaSearch extension allows Cross-Site Scripting (XSS).
This issue affects MediaWiki MediaSearch extension: 1.46, 1.45, and 1.43.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:54 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki MediaSearch extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
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CVE-2026-103584 (GCVE-0-2026-103584)
Vulnerability from cvelistv5 – Published: 2026-09-30 22:14 – Updated: 2026-10-01 15:53
VLAI
EPSS
VEX
Title
attacker-controlled javascript license URL via XSS
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki CommonsMetadata extension allows Cross-Site Scripting (XSS).
This issue affects MediaWiki CommonsMetadata extension: 1.46, 1.45, and 1.43.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:52 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki CommonsMetadata extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
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CVE-2026-103440 (GCVE-0-2026-103440)
Vulnerability from cvelistv5 – Published: 2026-09-30 17:38 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
pagetriagelist discloses suppressed reviewer usernames
Summary
Exposure of sensitive information through data queries vulnerability in The Wikimedia Foundation MediaWiki PageTriage extension allows Information Elicitation.
This issue affects MediaWiki PageTriage extension: 1.46, 1.45, and 1.43.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:11 UTC
CWE
- CWE-202 - Exposure of sensitive information through data queries
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki PageTriage extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
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CVE-2026-103439 (GCVE-0-2026-103439)
Vulnerability from cvelistv5 – Published: 2026-09-30 17:34 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
Various rawParams() and escaped() updates to prevent XSS in Wikibase extension
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki Wikbase extension allows Cross-Site Scripting (XSS).
This issue affects MediaWiki Wikbase extension: 1.46, 1.45, and 1.43.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:12 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki Wikbase extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
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CVE-2026-103438 (GCVE-0-2026-103438)
Vulnerability from cvelistv5 – Published: 2026-09-30 17:32 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
Various rawParams() and escaped() updates to prevent XSS in Wikistories extension
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki Wikistories extension allows Cross-Site Scripting (XSS).
This issue affects MediaWiki Wikistories extension: 1.46, 1.45, and 1.43.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:11 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki Wikistories extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
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CVE-2026-103437 (GCVE-0-2026-103437)
Vulnerability from cvelistv5 – Published: 2026-09-30 17:17 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
ReadingLists imported metadata permits JavaScript URL XSS
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki ReadingLists extension allows Reflected XSS.
This issue affects MediaWiki ReadingLists extension: 1.46 and 1.45.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:12 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki ReadingLists extension |
Affected:
1.46
Affected: 1.45 |
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CVE-2026-103446 (GCVE-0-2026-103446)
Vulnerability from cvelistv5 – Published: 2026-09-30 17:13 – Updated: 2026-09-30 17:13
VLAI
EPSS
VEX
Title
WikiLambda exposes anonymous execution of unsaved Abstract Wikipedia fragments
Summary
Authorization bypass through User-Controlled key vulnerability in The Wikimedia Foundation MediaWiki WikiLambda extension allows Authentication Bypass.
This issue affects MediaWiki WikiLambda extension: 1.46.
Severity
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki WikiLambda extension |
Affected:
1.46
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CVE-2026-103445 (GCVE-0-2026-103445)
Vulnerability from cvelistv5 – Published: 2026-09-30 17:04 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
Stored XSS through PageForms #autoedit redirect links
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki Page_Forms extension allows Stored XSS.
This issue affects MediaWiki Page_Forms extension: 1.46, 1.45, and 1.43.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:12 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki Page_Forms extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
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CVE-2026-103444 (GCVE-0-2026-103444)
Vulnerability from cvelistv5 – Published: 2026-09-30 16:23 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
Stored XSS through system messages in WikiForum
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki WikiForum extension allows Stored XSS.
This issue affects MediaWiki WikiForum extension: master.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:12 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki WikiForum extension |
Affected:
master
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CVE-2026-103443 (GCVE-0-2026-103443)
Vulnerability from cvelistv5 – Published: 2026-09-30 16:19 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
API permits session-seeded javascript URL XSS
Summary
Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki Collection (Book) extension allows XSS Targeting Non-Script Elements.
This issue affects MediaWiki Collection (Book) extension: 1.46, 1.45, and 1.43.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:13 UTC
CWE
- CWE-80 - Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki Collection (Book) extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
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CVE-2026-103442 (GCVE-0-2026-103442)
Vulnerability from cvelistv5 – Published: 2026-09-30 16:09 – Updated: 2026-09-30 16:09
VLAI
EPSS
VEX
Title
MergeAccount PHP object injection via session-key substitution
Summary
External control of system or configuration setting vulnerability in The Wikimedia Foundation MediaWiki CentralAuth extension allows Code Injection.
This issue affects MediaWiki CentralAuth extension: 1.46, 1.45, and 1.43.
Severity
CWE
- CWE-15 - External control of system or configuration setting
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki CentralAuth extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
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CVE-2026-103441 (GCVE-0-2026-103441)
Vulnerability from cvelistv5 – Published: 2026-09-30 15:59 – Updated: 2026-09-30 15:59
VLAI
EPSS
VEX
Title
Unauthenticated arbitrary file deletion through Wikibase serialized entity parsing
Summary
Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.
This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.
Severity
CWE
- CWE-502 - Deserialization of untrusted data
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | MediaWiki Wikibase extension |
Affected:
1.46
Affected: 1.45 Affected: 1.43 |
Date Public
2026-09-30 15:46
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CVE-2026-103051 (GCVE-0-2026-103051)
Vulnerability from cvelistv5 – Published: 2026-09-29 23:13 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
Stored i18n XSSs in CentralNotice
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralNotice extension allows Stored XSS.
This issue affects Mediawiki - CentralNotice extension: before 1.46.1, 1.45.5, 1.43.10.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:14 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://phabricator.wikimedia.org/T432419 | issue-tracking |
| https://gerrit.wikimedia.org/r/c/mediawiki/extens… | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - CentralNotice extension |
Affected:
0 , < 1.46.1, 1.45.5, 1.43.10
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CVE-2026-103050 (GCVE-0-2026-103050)
Vulnerability from cvelistv5 – Published: 2026-09-29 23:11 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
Stored i18n XSS in MassMessage
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - MassMessage extension allows Stored XSS.
This issue affects Mediawiki - MassMessage extension: before 1.46.1, 1.45.5, 1.43.10.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:14 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://phabricator.wikimedia.org/T432341 | issue-tracking |
| https://gerrit.wikimedia.org/r/c/1346089 | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - MassMessage extension |
Affected:
0 , < 1.46.1, 1.45.5, 1.43.10
(semver)
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CVE-2026-103049 (GCVE-0-2026-103049)
Vulnerability from cvelistv5 – Published: 2026-09-29 23:08 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
XSS in Cargo's Special:CargoQuery page due to unsanitized table headers
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Cargo extension allows Reflected XSS.
This issue affects Mediawiki - Cargo extension: before 1.46.1.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:01 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://phabricator.wikimedia.org/T431567 | issue-tracking |
| https://gerrit.wikimedia.org/r/c/mediawiki/extens… | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - Cargo extension |
Affected:
0 , < 1.46.1
(semver)
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CVE-2026-103048 (GCVE-0-2026-103048)
Vulnerability from cvelistv5 – Published: 2026-09-29 23:04 – Updated: 2026-10-01 18:33
VLAI
EPSS
VEX
Title
Open Redirect in Special:Book
Summary
URL redirection to untrusted site ('open redirect') vulnerability in The Wikimedia Foundation Mediawiki - Collection extension allows Fake the Source of Data.
This issue affects Mediawiki - Collection extension: before 1.46.1, 1.45.5, 1.43.10.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 18:32 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://phabricator.wikimedia.org/T321092 | issue-tracking |
| https://gerrit.wikimedia.org/r/c/1346083 | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - Collection extension |
Affected:
0 , < 1.46.1, 1.45.5, 1.43.10
(semver)
|
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CVE-2026-103047 (GCVE-0-2026-103047)
Vulnerability from cvelistv5 – Published: 2026-09-29 22:59 – Updated: 2026-09-30 20:03
VLAI
EPSS
VEX
Title
XSS through i18n message in CentralAuth
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralAuth extension allows Stored XSS.
This issue affects Mediawiki - CentralAuth extension: before 1.46.1, 1.45.5, 1.43.10.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:03 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://phabricator.wikimedia.org/T244682 | issue-tracking |
| https://gerrit.wikimedia.org/r/c/1309285 | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - CentralAuth extension |
Affected:
0 , < 1.46.1, 1.45.5, 1.43.10
(semver)
|
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CVE-2026-103045 (GCVE-0-2026-103045)
Vulnerability from cvelistv5 – Published: 2026-09-29 22:51 – Updated: 2026-09-30 20:24
VLAI
EPSS
VEX
Title
XSS in Refreshed skin
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - Refreshed skin allows Stored XSS.
This issue affects Mediawiki - Refreshed skin: before 1.46.1, 1.45.5, 1.43.10.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:23 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://phabricator.wikimedia.org/T268377 | issue-tracking |
| https://gerrit.wikimedia.org/r/c/mediawiki/skins/… | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - Refreshed skin |
Affected:
0 , < 1.46.1, 1.45.5, 1.43.10
(semver)
|
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CVE-2026-103044 (GCVE-0-2026-103044)
Vulnerability from cvelistv5 – Published: 2026-09-29 22:46 – Updated: 2026-10-01 18:44
VLAI
EPSS
VEX
Title
EasyTimeline should not serve image maps as application/xml
Summary
XML injection (aka blind XPath injection) vulnerability in The Wikimedia Foundation Mediawiki - EasyTimeline extension allows XML Injection.
This issue affects Mediawiki - EasyTimeline extension: before 1.46.1, 1.45.5, 1.43.10.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 18:43 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://phabricator.wikimedia.org/T428006 | issue-tracking |
| https://gerrit.wikimedia.org/r/c/mediawiki/extens… | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - EasyTimeline extension |
Affected:
0 , < 1.46.1, 1.45.5, 1.43.10
(semver)
|
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CVE-2026-103046 (GCVE-0-2026-103046)
Vulnerability from cvelistv5 – Published: 2026-09-29 22:41 – Updated: 2026-09-30 20:01
VLAI
EPSS
VEX
Title
WikifunctionsFragmentRenderer does unsafe string replacements on user-provided HTML
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation MediaWiki - WikiLambda extension allows Stored XSS.
This issue affects MediaWiki - WikiLambda extension: before 1.46.1.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:15 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://phabricator.wikimedia.org/T428829 | issue-tracking |
| https://gerrit.wikimedia.org/r/c/1307827 | mitigation |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Wikimedia Foundation | Mediawiki - WikiLambda Extension |
Affected:
0 , < 1.46.1
(semver)
|
Date Public
2026-09-29 22:32
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CVE-2026-102796 (GCVE-0-2026-102796)
Vulnerability from cvelistv5 – Published: 2026-09-29 16:55 – Updated: 2026-10-01 18:16
VLAI
EPSS
VEX
Title
Unauthenticated SQL injection in UserPageViewTracker via filterusers and ignoreusers parameters
Summary
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Wikimedia Foundation Mediawiki - UserPageViewTracker Extension allows SQL Injection.
This issue affects Mediawiki - UserPageViewTracker Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 18:16 UTC
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - UserPageViewTracker Extension |
Affected:
* , < 1.46.1, 1.45.5, 1.43.10
(semver)
|
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CVE-2026-100245 (GCVE-0-2026-100245)
Vulnerability from cvelistv5 – Published: 2026-09-29 16:52 – Updated: 2026-09-30 20:43
VLAI
EPSS
VEX
Title
Stored XSS on Wikibase Special:SetSiteLink via unescaped system message
Summary
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS.
This issue affects Mediawiki - Wikibase Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:43 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - Wikibase Extension |
Affected:
* , < 1.46.1, 1.45.5, 1.43.10
(semver)
|
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CVE-2026-100244 (GCVE-0-2026-100244)
Vulnerability from cvelistv5 – Published: 2026-09-29 16:48 – Updated: 2026-09-30 20:44
VLAI
EPSS
VEX
Title
CentralAuth exposes locally suppressed block information via globaluserinfo API and Special:CentralAuth (incomplete fix for CVE-2025-62669)
Summary
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows Excavation.
This issue affects Mediawiki - CentralAuth Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:43 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - CentralAuth Extension |
Affected:
* , < 1.46.1, 1.45.5, 1.43.10
(semver)
|
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CVE-2026-100243 (GCVE-0-2026-100243)
Vulnerability from cvelistv5 – Published: 2026-09-29 16:43 – Updated: 2026-09-30 20:45
VLAI
EPSS
VEX
Title
Stored XSS in WikiSEO author and image properties on action=info
Summary
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiSEO Extension allows Stored XSS.
This issue affects Mediawiki - WikiSEO Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:44 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - WikiSEO Extension |
Affected:
* , < 1.46.1, 1.45.5, 1.43.10
(semver)
|
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CVE-2026-100242 (GCVE-0-2026-100242)
Vulnerability from cvelistv5 – Published: 2026-09-29 16:40 – Updated: 2026-10-01 18:13
VLAI
EPSS
VEX
Title
DataTransfer depends on phpspreadsheet version vulnerable to CVE-2026-59933 (XLS/OLE memory exhaustion)
Summary
Dependency on Vulnerable Third-Party Component and Uncontrolled Resource Consumption vulnerability in Wikimedia Foundation Mediawiki - DataTransfer Extension allows Excessive Allocation.
This issue affects Mediawiki - DataTransfer Extension: from 1.46.0 before 1.47.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 18:11 UTC
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - DataTransfer Extension |
Affected:
1.46.0 , < 1.47.0
(semver)
|
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CVE-2026-100241 (GCVE-0-2026-100241)
Vulnerability from cvelistv5 – Published: 2026-09-29 16:36 – Updated: 2026-09-30 20:46
VLAI
EPSS
VEX
Title
Private change tags exposed to anonymous users via revision-tags-change events
Summary
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - EventBus Extension allows Excavation.
This issue affects Mediawiki - EventBus Extension: 1.47.0-alpha.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 20:45 UTC
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - EventBus Extension |
Affected:
1.47.0-alpha
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CVE-2026-100240 (GCVE-0-2026-100240)
Vulnerability from cvelistv5 – Published: 2026-09-29 16:26 – Updated: 2026-10-01 18:07
VLAI
EPSS
VEX
Title
TemplateSandbox does not check read permissions for the page being previewed
Summary
Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - TemplateSandbox Extension allows Accessing Functionality Not Properly Constrained by ACLs.
This issue affects Mediawiki - TemplateSandbox Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 18:07 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - TemplateSandbox Extension |
Affected:
* , < 1.46.1, 1.45.5, 1.43.10
(semver)
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CVE-2026-100238 (GCVE-0-2026-100238)
Vulnerability from cvelistv5 – Published: 2026-09-29 16:12 – Updated: 2026-09-30 20:11
VLAI
EPSS
VEX
Title
Flow colon-separator and flow-guidedtour-optin-welcome-description messages allow stored XSS
Summary
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Flow Extension allows Stored XSS.
This issue affects Mediawiki - Flow Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:40 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - Flow Extension |
Affected:
* , < 1.46.1, 1.45.5, 1.43.10
(semver)
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CVE-2026-100383 (GCVE-0-2026-100383)
Vulnerability from cvelistv5 – Published: 2026-09-25 21:05 – Updated: 2026-09-26 22:51
VLAI
EPSS
VEX
Title
Stored i18n XSS in WikiLambda's VisualEditor integration
Summary
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiLambda Extension allows Cross-Site Scripting (XSS).
This issue affects Mediawiki - WikiLambda Extension: 1.47.0-alpha. The issue has been remediated on the `master` branch.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 22:43 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - WikiLambda Extension |
Affected:
1.47.0-alpha
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CVE-2026-100382 (GCVE-0-2026-100382)
Vulnerability from cvelistv5 – Published: 2026-09-25 21:04 – Updated: 2026-09-26 22:51
VLAI
EPSS
VEX
Title
Unauthenticated remote code execution through wikitext in ExternalData
Summary
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Wikimedia Foundation Mediawiki - ExternalData Extension allows OS Command Injection.
This issue affects Mediawiki - ExternalData Extension: from * before 3.7.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 22:43 UTC
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wikimedia Foundation | Mediawiki - ExternalData Extension |
Affected:
* , < 3.7
(custom)
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"assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
"assignerShortName": "wikimedia-foundation",
"cveId": "CVE-2026-100382",
"datePublished": "2026-09-25T21:04:02.848Z",
"dateReserved": "2026-09-25T19:28:16.149Z",
"dateUpdated": "2026-09-26T22:51:17.735Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}