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CERTFR-2026-AVI-1046
Vulnerability from certfr_avis - Published: 2026-08-19 - Updated: 2026-08-19
De multiples vulnérabilités ont été découvertes dans Joomla!. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une atteinte à l'intégrité des données et une injection de code indirecte à distance (XSS).
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Joomla! versions 3.x \u00e0 5.x ant\u00e9rieures \u00e0 5.4.8",
"product": {
"name": "Joomla!",
"vendor": {
"name": "Joomla!",
"scada": false
}
}
},
{
"description": "Joomla! versions 6.x ant\u00e9rieures \u00e0 6.1.3",
"product": {
"name": "Joomla!",
"vendor": {
"name": "Joomla!",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-73371",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-73371"
},
{
"name": "CVE-2026-73337",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-73337"
},
{
"name": "CVE-2026-73336",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-73336"
},
{
"name": "CVE-2026-71574",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-71574"
},
{
"name": "CVE-2026-71572",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-71572"
},
{
"name": "CVE-2026-72532",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-72532"
},
{
"name": "CVE-2026-73373",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-73373"
},
{
"name": "CVE-2026-72531",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-72531"
},
{
"name": "CVE-2026-71573",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-71573"
},
{
"name": "CVE-2026-73372",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-73372"
}
],
"initial_release_date": "2026-08-19T00:00:00",
"last_revision_date": "2026-08-19T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1046",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-08-19T00:00:00.000000"
}
],
"risks": [
{
"description": "Injection de code indirecte \u00e0 distance (XSS)"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Joomla!. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es et une injection de code indirecte \u00e0 distance (XSS).",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Joomla!",
"vendor_advisories": [
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1074-20260807",
"url": "https://developer.joomla.org/security-centre/1074-20260807-core-mfa-authentication-bypass.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1069-20260802",
"url": "https://developer.joomla.org/security-centre/1069-20260802-core-improper-cors-origin-validation.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1077-20260810",
"url": "https://developer.joomla.org/security-centre/1077-20260810-core-unrestricted-uploads-of-shtml-files.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1071-20260804",
"url": "https://developer.joomla.org/security-centre/1071-20260804-core-improper-acl-checks-for-custom-fields-webservice-endpoints.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1076-20260809",
"url": "https://developer.joomla.org/security-centre/1076-20260809-core-improper-acl-checks-when-injection-schema-org-contact-data.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1072-20260805",
"url": "https://developer.joomla.org/security-centre/1072-20260805-core-improper-acl-checks-for-category-webservice-endpoints.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1075-20260808",
"url": "https://developer.joomla.org/security-centre/1075-20260808-core-improper-acl-checks-for-batch-copy-actions.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1073-20260806",
"url": "https://developer.joomla.org/security-centre/1073-20260806-core-xss-through-schema-org-outputs.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1068-20260801",
"url": "https://developer.joomla.org/security-centre/1068-20260801-core-response-header-injection-in-download-views.html"
},
{
"published_at": "2026-08-18",
"title": "Bulletin de s\u00e9curit\u00e9 Joomla! 1070-20260803",
"url": "https://developer.joomla.org/security-centre/1070-20260803-core-inconsistent-acl-checks-for-mutating-webservice-endpoints.html"
}
]
}
CVE-2026-71572 (GCVE-0-2026-71572)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:05 – Updated: 2026-08-19 04:46
VLAI
EPSS
VEX
Title
Joomla! Core - [20260801] - Response header injection in download views in Joomla 3.0.0-5.4.7, 6.0.0-6.1.2
Summary
Joomla! Core - [20260801] - Response header injection in download views in Joomla 3.0.0-5.4.7, 6.0.0-6.1.2 - Lack of output processing allowed a header injection in the multiple download views, leading to reflected file download / content-type confusion.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:04 UTC
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/1068… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
3.0.0-5.4.6
Affected: 6.0.0-6.1.2 |
Credits
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}
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"Recovery": "NOT_DEFINED",
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"baseScore": 4.8,
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"source": {
"discovery": "UNKNOWN"
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"title": "Joomla! Core - [20260801] - Response header injection in download views in Joomla 3.0.0-5.4.7, 6.0.0-6.1.2",
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"dataVersion": "5.2"
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CVE-2026-71573 (GCVE-0-2026-71573)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:09 – Updated: 2026-08-19 04:50
VLAI
EPSS
VEX
Title
Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2
Summary
Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper implementation prevented configured CORS origins from being properly validated in CORS requests.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:02 UTC
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/2026… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
4.0.0-5.4.6
Affected: 6.0.0-6.1.2 |
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
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"type": "finder",
"value": "Agamemnon Fakas"
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"type": "finder",
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CVE-2026-71574 (GCVE-0-2026-71574)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:02 – Updated: 2026-08-19 04:43
VLAI
EPSS
VEX
Title
Joomla! Core - [20260803] - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2
Summary
Joomla! Core - [20260803] - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform mutation actions in webservice endpoints, where the same mutation was restricted in the backend UI.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:01 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/1070… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
4.0.0-5.4.6
Affected: 6.0.0-6.1.2 |
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CVE-2026-72531 (GCVE-0-2026-72531)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:08 – Updated: 2026-08-19 04:49
VLAI
EPSS
VEX
Title
Joomla! Core - [20260804] - Improper ACL checks for custom fields webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2
Summary
Joomla! Core - [20260804] - Improper ACL checks for custom fields webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to create fields for inaccessible components.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:03 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/2026… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
4.0.0-5.4.6
Affected: 6.0.0-6.1.2 |
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CVE-2026-72532 (GCVE-0-2026-72532)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:03 – Updated: 2026-08-19 04:44
VLAI
EPSS
VEX
Title
Joomla! Core - [20260805] - Improper ACL checks for category webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2
Summary
Joomla! Core - [20260806] - Improper ACL checks for category webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to create categories via webservices endpoints.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:05 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/1072… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
4.0.0-5.4.6
Affected: 6.0.0-6.1.2 |
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CVE-2026-73336 (GCVE-0-2026-73336)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:06 – Updated: 2026-08-19 04:46
VLAI
EPSS
VEX
Title
Joomla! Core - [20260806] - XSS through schema.org outputs in Joomla 5.1.0-5.4.7, 6.0.0-6.1.2
Summary
Joomla! Core - [20260806] - XSS through schema.org outputs in Joomla 5.1.0-5.4.7, 6.0.0-6.1.2 - Improper escaping flags lead to an XSS vector in schema.org markup outputs.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:03 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/1073… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
5.1.0-5.4.6
Affected: 6.0.0-6.1.2 |
Credits
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CVE-2026-73337 (GCVE-0-2026-73337)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:04 – Updated: 2026-08-19 10:43
VLAI
EPSS
VEX
Title
Joomla! Core - [20260807] - MFA Authentication Bypass in Joomla 4.0.0-5.4.7 and 6.0.0-6.1.2
Summary
Joomla! Core - [20260807] - MFA Authentication Bypass in Joomla 4.0.0-5.4.7 and 6.0.0-6.1.2 - Insufficient state checks lead to a vector that allows to bypass 2FA checks.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:05 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/1074… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
4.0.0-5.4.6
Affected: 6.0.0-6.1.2 |
Credits
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CVE-2026-73371 (GCVE-0-2026-73371)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:04 – Updated: 2026-08-19 04:45
VLAI
EPSS
VEX
Title
Joomla! Core - [20260808] - Improper ACL checks for batch copy actions in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2
Summary
Joomla! Core - [20260808] - Improper ACL checks for batch copy actions in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to perform copy batch operations on uneditable items.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:05 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/1075… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
4.0.0-5.4.6
Affected: 6.0.0-6.1.2 |
Credits
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CVE-2026-73372 (GCVE-0-2026-73372)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:05 – Updated: 2026-08-19 04:46
VLAI
EPSS
VEX
Title
Joomla! Core - [20260809] - Improper ACL checks when injection schema.org contact data in Joomla 5.1.0-5.4.7 and 6.0.0-6.1.2
Summary
Joomla! Core - [20260809] - Improper ACL checks when injection schema.org contact data in Joomla 5.1.0-5.4.7 and 6.0.0-6.1.2 - An improper access check injects contact information for unaccessible contact items into schema.org snippets.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 19:04 UTC
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/1076… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
5.1.0-5.4.6
Affected: 6.0.0-6.1.2 |
Credits
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CVE-2026-73373 (GCVE-0-2026-73373)
Vulnerability from cvelistv5 – Published: 2026-08-18 16:03 – Updated: 2026-08-19 04:44
VLAI
EPSS
VEX
Title
Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2
Summary
Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2 - The default list of dangerous files did not include SHTML files. On servers that executed these files, that could lead to code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 00:00 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.joomla.org/ | product |
| https://developer.joomla.org/security-centre/1077… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Joomla! Project | Joomla! CMS |
Affected:
1.0.0-5.4.6
Affected: 6.0.0-6.1.2 |
|
| Joomla! Project | Joomla! Framework Filesystem package |
Affected:
1.0.0-3.3.0
Affected: 4.0.0-4.2.0 |
Credits
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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