CVE-2026-103377 Reflected cross-site scripting in the video library of the Regional Parliament of Castile-La Mancha

Medium 5.1 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-103377?

CVE-2026-103377 is a medium-severity vulnerability in Video library of the Regional Parliament of Castile-La Mancha, published on 26 Oct 2026.

Official description

A reflected Cross-Site Scripting (XSS) vulnerability has been identified in the web application of the Castile-La Mancha Regional Parliament’s video library. The application embeds user-supplied content into the page without properly sanitising it before it is rendered by the browser. Exploitation of this vulnerability could allow a remote attacker to execute arbitrary JavaScript code in the browser of a victim who interacts with the content crafted for the attack.

Weakness: CWE-79

Which versions are affected by CVE-2026-103377?

How do I fix CVE-2026-103377?

No fix has been published for CVE-2026-103377 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-103377 being exploited?

There is no known exploitation of CVE-2026-103377 in the wild and no public exploit code.

Sources

Also known as GHSA-j342-hpfm-cfjv.

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