CVE-2026-21331
Last modified
CVE-2026-21331 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Adobe | Connect | < 12.11 |
| Adobe | Connect Desktop Application | <= 2025.3 |
| Adobe | Connect Desktop Application | < 2025.9.15 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-21331?
How severe is CVE-2026-21331?
How do I fix CVE-2026-21331?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-21326After Effects versions 25.6 and earlier are affected by a Us…7.8
- CVE-2026-21327After Effects versions 25.6 and earlier are affected by an o…7.8
- CVE-2026-21328After Effects versions 25.6 and earlier are affected by an o…7.8
- CVE-2026-21329After Effects versions 25.6 and earlier are affected by a Us…7.8
- CVE-2026-2133A weakness has been identified in code-projects Online Music…9.8
- CVE-2026-21330After Effects versions 25.6 and earlier are affected by an A…7.8
- CVE-2026-21332InDesign Desktop versions 21.1, 20.5.1 and earlier are affec…5.5
- CVE-2026-21333Illustrator versions 29.8.4, 30.1 and earlier are affected b…8.6
- CVE-2026-21334Substance3D - Designer versions 15.1.0 and earlier are affec…7.8
- CVE-2026-21335Substance3D - Designer versions 15.1.0 and earlier are affec…7.8
- CVE-2026-21336Substance3D - Designer versions 15.1.0 and earlier are affec…5.5
- CVE-2026-21337Substance3D - Designer versions 15.1.0 and earlier are affec…5.5
Are you affected by CVE-2026-21331?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST