Medium severity · published Apr 14, 2026
CVE-2026-21331
Adobe Connect | Cross-site Scripting (Reflected XSS) (CWE-79)
6.1
CVSS
0.3%
EPSS
No
On KEV
Description
Adobe Connect versions 2025.3, 12.10 and earlier are affected by a reflected Cross-Site Scripting (XSS) vulnerability. If an attacker is able to convince a victim to visit a URL referencing a vulnerable page, malicious JavaScript content may be executed within the context of the victim's browser. Scope is changed.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Adobe Connect · Adobe
through 12.10 · source: vendor
AC
Adobe Connect Desktop Application · Adobe
through 2025.3 · source: vendor
CO
Connect · Adobe
before 12.11 · source: NVD
CD
Connect Desktop Application · Adobe
through 2025.3; before 2025.9.15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21331
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21331
Vendor Advisory
https://helpx.adobe.com/security/products/connect/apsb26-37.html
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