{"id":"CVE-2026-58205","published":"2026-10-27T23:17:05.840","lastModified":"2026-10-27T23:17:05.840","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.","cvssScore":8.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","cwes":["CWE-79"],"vendors":[],"products":[],"references":[{"url":"https://github.com/JeromeDevome/GRR/commit/4ef77f91818215c1f8e0f06023d89257dfd61c68","tags":[]},{"url":"https://github.com/JeromeDevome/GRR/security/advisories/GHSA-r6x2-w38j-vvq2","tags":[]},{"url":"https://github.com/JeromeDevome/GRR/tree/v4.5.0","tags":[]}],"exploitRefs":[{"url":"https://github.com/JeromeDevome/GRR/commit/4ef77f91818215c1f8e0f06023d89257dfd61c68","tags":[]},{"url":"https://github.com/JeromeDevome/GRR/security/advisories/GHSA-r6x2-w38j-vvq2","tags":[]},{"url":"https://github.com/JeromeDevome/GRR/tree/v4.5.0","tags":[]}],"hasPoc":true,"ai":null}