{"cve":"CVE-2021-29487","nvd":{"published":"2021-08-26T19:15:07.160","modified":"2026-06-17T03:47:44.653","status":"Modified","description":"octobercms in a CMS platform based on the Laravel PHP Framework. In affected versions of the october/system package an attacker can exploit this vulnerability to bypass authentication and takeover of and user account on an October CMS server. The vulnerability is exploitable by unauthenticated users via a specially crafted request. This only affects frontend users and the attacker must obtain a Laravel secret key for cookie encryption and signing in order to exploit this vulnerability. The issue has been patched in Build 472 and v1.1.5.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4},"cwes":["CWE-287"],"references":["https://github.com/octobercms/library/commit/016a297b1bec55d2e53bc889458ed2cb5c3e9374","https://github.com/octobercms/library/commit/5bd1a28140b825baebe6becd4f7562299d3de3b9","https://github.com/octobercms/october/security/advisories/GHSA-h76r-vgf3-j6w5","https://github.com/octobercms/library/commit/016a297b1bec55d2e53bc889458ed2cb5c3e9374","https://github.com/octobercms/library/commit/5bd1a28140b825baebe6becd4f7562299d3de3b9"],"products":["octobercms:october"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-29487","score":0.00895,"percentile":0.59515,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}