CVE-2026-21331 json
Adobe Connect | Cross-site Scripting (Reflected XSS) (CWE-79)
published 2026-04-14 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-22657
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Adobe Adobe Connect 12.11
- Adobe Adobe Connect Desktop Application 2025.9
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- Adobe Adobe Connect
- Adobe Adobe Connect Desktop Application
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
helpx.adobe.com
/security/products/connect/apsb26-37.html
vendor-advisory
Sources
- CVE List CVE-2026-21331
- NVD CVE-2026-21331
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