CVE-2026-27243 (GCVE-0-2026-27243)
Vulnerability from cvelistv5 – Published: 2026-04-14 17:33 – Updated: 2026-08-27 22:15
VLAI
EPSS
VEX
Title
Adobe Connect | Cross-site Scripting (Reflected XSS) (CWE-79)
Summary
Adobe Connect versions 2025.3, 12.10 and earlier are affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.
Severity
9.3 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-14 19:10 UTC
CWE
- CWE-79 - Cross-site Scripting (Reflected XSS) (CWE-79)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/connect… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Adobe | Adobe Connect |
Affected:
0 , ≤ 12.10
(semver)
Unaffected: 12.11 (semver) |
guessed | |
| Adobe | Adobe Connect Desktop Application |
Affected:
0 , ≤ 2025.3
(custom)
Unaffected: 2025.9 (custom) |
guessed |
Date Public
2026-04-14 17:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-27243",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-14T19:10:44.552958Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-14T19:10:50.684Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Adobe Connect",
"vendor": "Adobe",
"versions": [
{
"lessThanOrEqual": "12.10",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "12.11",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Adobe Connect Desktop Application",
"vendor": "Adobe",
"versions": [
{
"lessThanOrEqual": "2025.3",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "2025.9",
"versionType": "custom"
}
]
}
],
"datePublic": "2026-04-14T17:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Adobe Connect versions 2025.3, 12.10 and earlier are affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim\u0027s account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"environmentalScore": 9.3,
"environmentalSeverity": "CRITICAL",
"exploitCodeMaturity": "NOT_DEFINED",
"integrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "LOW",
"modifiedAttackVector": "NETWORK",
"modifiedAvailabilityImpact": "NONE",
"modifiedConfidentialityImpact": "HIGH",
"modifiedIntegrityImpact": "HIGH",
"modifiedPrivilegesRequired": "NONE",
"modifiedScope": "CHANGED",
"modifiedUserInteraction": "REQUIRED",
"privilegesRequired": "NONE",
"remediationLevel": "NOT_DEFINED",
"reportConfidence": "NOT_DEFINED",
"scope": "CHANGED",
"temporalScore": 9.3,
"temporalSeverity": "CRITICAL",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross-site Scripting (Reflected XSS) (CWE-79)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-27T22:15:56.910Z",
"orgId": "078d4453-3bcd-4900-85e6-15281da43538",
"shortName": "adobe"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://helpx.adobe.com/security/products/connect/apsb26-37.html"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Adobe Connect | Cross-site Scripting (Reflected XSS) (CWE-79)",
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
"assignerShortName": "adobe",
"cveId": "CVE-2026-27243",
"datePublished": "2026-04-14T17:33:43.289Z",
"dateReserved": "2026-02-18T22:02:41.383Z",
"dateUpdated": "2026-08-27T22:15:56.910Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-27243",
"date": "2026-09-20",
"epss": "0.00304",
"percentile": "0.2336"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Adobe Connect",
"vendor": "Adobe",
"versions": [
{
"lessThanOrEqual": "12.10",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "12.11",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Adobe Connect Desktop Application",
"vendor": "Adobe",
"versions": [
{
"lessThanOrEqual": "2025.3",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "2025.9",
"versionType": "custom"
}
]
}
],
"source": "psirt@adobe.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:adobe:connect:*:*:*:*:*:-:*:*",
"matchCriteriaId": "4A1D88E9-612C-49B1-8521-F2258D4D74CA",
"versionEndExcluding": "12.11",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*",
"matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E",
"vulnerable": false
},
{
"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:macos:*:*",
"matchCriteriaId": "185BF6E9-82FC-45E0-A64E-03FB923F34AD",
"versionEndIncluding": "2025.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:windows:*:*",
"matchCriteriaId": "783AAAA9-E68B-43E3-86A3-5227E27392A5",
"versionEndExcluding": "2025.9.15",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Adobe Connect versions 2025.3, 12.10 and earlier are affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim\u0027s account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed."
}
],
"id": "CVE-2026-27243",
"lastModified": "2026-08-28T00:17:07.510",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.8,
"source": "psirt@adobe.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.8,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-27243",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-14T19:10:44.552958Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-04-14T18:16:55.730",
"references": [
{
"source": "psirt@adobe.com",
"tags": [
"Vendor Advisory"
],
"url": "https://helpx.adobe.com/security/products/connect/apsb26-37.html"
}
],
"sourceIdentifier": "psirt@adobe.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "psirt@adobe.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-04-28T07:22:44+00:00",
"cve": "CVE-2026-27243",
"id": "CVE-2026-27243",
"initial_release_date": "2026-04-14T17:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Adobe Connect | Cross-site Scripting (Reflected XSS) (CWE-79)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27243.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-27243",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-14T19:10:44.552958Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-14T19:10:46.970Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Adobe Connect",
"vendor": "Adobe",
"versions": [
{
"lessThanOrEqual": "12.10",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "12.11",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Adobe Connect Desktop Application",
"vendor": "Adobe",
"versions": [
{
"lessThanOrEqual": "2025.3",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "2025.9",
"versionType": "custom"
}
]
}
],
"datePublic": "2026-04-14T17:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Adobe Connect versions 2025.3, 12.10 and earlier are affected by a reflected Cross-Site Scripting (XSS) vulnerability. An attacker could exploit this vulnerability to inject malicious scripts into a web page, potentially gaining elevated access or control over the victim\u0027s account or session. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"environmentalScore": 9.3,
"environmentalSeverity": "CRITICAL",
"exploitCodeMaturity": "NOT_DEFINED",
"integrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "LOW",
"modifiedAttackVector": "NETWORK",
"modifiedAvailabilityImpact": "NONE",
"modifiedConfidentialityImpact": "HIGH",
"modifiedIntegrityImpact": "HIGH",
"modifiedPrivilegesRequired": "NONE",
"modifiedScope": "CHANGED",
"modifiedUserInteraction": "REQUIRED",
"privilegesRequired": "NONE",
"remediationLevel": "NOT_DEFINED",
"reportConfidence": "NOT_DEFINED",
"scope": "CHANGED",
"temporalScore": 9.3,
"temporalSeverity": "CRITICAL",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross-site Scripting (Reflected XSS) (CWE-79)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-27T22:15:56.910Z",
"orgId": "078d4453-3bcd-4900-85e6-15281da43538",
"shortName": "adobe"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://helpx.adobe.com/security/products/connect/apsb26-37.html"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Adobe Connect | Cross-site Scripting (Reflected XSS) (CWE-79)",
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
"assignerShortName": "adobe",
"cveId": "CVE-2026-27243",
"datePublished": "2026-04-14T17:33:43.289Z",
"dateReserved": "2026-02-18T22:02:41.383Z",
"dateUpdated": "2026-08-27T22:15:56.910Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
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.
Loading…
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…