CVSS 3.1
7.4 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2021-29487
High (7.4) in octobercms october. EPSS 0.9% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
- CWE
- CWE-287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- octobercms:october
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