CVE-2026-42870 WeGIA: Cross-Site Scripting (XSS) Stored endpoint 'informacao_adicional.php' parameter 'descricao'
Attackers can inject persistent scripts into user profiles, leading to code execution or account takeover when profiles are viewed.
- 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-2026-42870?
CVE-2026-42870 is a medium-severity cross-site scripting vulnerability in LabRedesCefetRJ WeGIA, published on 11 May 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 3.7.0, a Stored Cross-Site Scripting (XSS) flaw was identified at the following endpoint: funcionario/profile_funcionario.php?id_funcionario=2. By injecting a malicious payload into the 'Description' (Descrição) field and saving the profile, the script becomes persistently stored. The payload is subsequently executed whenever the profile page is accessed. This vulnerability is fixed in 3.7.0.
Weakness: CWE-79
Which versions are affected by CVE-2026-42870?
How do I fix CVE-2026-42870?
No fix has been published for CVE-2026-42870 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-2026-42870 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42870 exists.
Sources
Also known as GHSA-q6jg-hfqv-882f.