Cross-site scripting in WeGIA - CVE-2026-40286
Published: April 23, 2026
Vulnerability identifier: #VU127352
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-40286
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary script in the user's browser.
The vulnerability exists due to cross-site scripting in the Member Registration function when processing the Member Name field and rendering stored input on the contribuições page. A remote attacker can inject a malicious script payload to execute arbitrary script in the user's browser.
The injected payload is persistently stored in the database and is executed when a user navigates to the contribution control page.
Affected software
WeGIA
How to mitigate CVE-2026-40286
Install security update from vendor's website.
WeGIA - update to 3.6.10