{"id":"CVE-2026-54599","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-54599","summary":"Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.4, login.php generates an OIDC state nonce stored in $_SESSION['oidc_state'], but checksession.php…","details":"Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.4, login.php generates an OIDC state nonce stored in $_SESSION['oidc_state'], but checksession.php dispatches the OIDC callback without comparing the incoming state against the session value. An attacker can trick a victim into visiting a crafted URL, causing Wallos to exchange the attacker's authorization code and log the victim into the attacker's account. This issue has been patched in version 4.9.4.","published":"2026-08-31T21:17:10.063","modified":"2026-08-31T21:17:10.063","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/ellite/Wallos/releases/tag/v4.9.4"},{"type":"WEB","url":"https://github.com/ellite/Wallos/security/advisories/GHSA-gr2w-m9v4-qm3v"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-31T21:17:10.063"}}