CVE-2026-40282 WeGIA has stored XSS in intercorrencia_visualizar.php

Medium 6.4 Published Updated

Authenticated users can inject malicious scripts into WeGIA notifications, leading to session hijacking and account takeover for other users.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-40282?

CVE-2026-40282 is a medium-severity cross-site scripting vulnerability in LabRedesCefetRJ WeGIA, published on 17 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

WeGIA is a web manager for charitable institutions. In versions prior to 3.6.10, a Stored Cross-Site Scripting (XSS) vulnerability allows an authenticated user to inject malicious JavaScript into the Intercorrências notification page, which is executed when user access the the page, enabling session hijacking and account takeover. Version 3.6.10 fixes the issue.

Weakness: CWE-79

Which versions are affected by CVE-2026-40282?

How do I fix CVE-2026-40282?

No fix has been published for CVE-2026-40282 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-40282 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40282 exists.

Sources

Also known as GHSA-r6h8-7vxv-q8pp.

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