What is CVE-2026-121910?

CVE-2026-121910 is a medium-severity vulnerability in Adobe Connect, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-11-10.

How severe is CVE-2026-121910?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Adobe Connect

CVE-2026-121910

Adobe Connect is affected by a Cross-Site Scripting (XSS) vulnerability. If a low-privileged 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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-11-10.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Adobe Connect

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.adobe.com/trust/security/products/connect/apsb26-191.html (vendor-advisory)

Frequently asked questions

What is CVE-2026-121910?: CVE-2026-121910 is a medium-severity vulnerability in Adobe Connect, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-11-10.
How severe is CVE-2026-121910?: Medium severity. CVSS v3 base score is 5.4 out of 10.