GRR is a resource management and reservation application

Why it is Yellow

• CVSS 8.1 high
• Remotely exploitable without logging in

References

• https://github.com/JeromeDevome/GRR/commit/4ef77f91818215c1f8e0f06023d89257dfd61c68
• https://github.com/JeromeDevome/GRR/security/advisories/GHSA-r6x2-w38j-vvq2
• https://github.com/JeromeDevome/GRR/tree/v4.5.0

Original description

GRR is a resource management and reservation application. Prior to version 4.5.0, `maj.php` reflects the `forcemaj` parameter without adequate escaping when installation files remain accessible. Removal of these files is not automatic. An attacker can craft a URL that executes arbitrary JavaScript in a victim's browser when the victim accesses it. This reflected cross-site scripting can enable phishing, redirection to malicious sites, cookie theft and session hijacking because the authentication cookie is not `HttpOnly`. This issue is fixed in version 4.5.0.