Home/CVE/octobercms in a CMS platform based on the Laravel PHP Framework. In affected versions of the october/system package an a
CVE

CVE-2021-29487

octobercms in a CMS platform based on the Laravel PHP Framework. In affected versions of the october/system package an a

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.

HIGH · CVSS 7.4 EPSS 0.00503
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-287Improper Authentication
▤

Affected Products & Versions

2
octobercms october>= 1.0.471 and < 1.0.472
octobercms october>= 1.1.1 and < 1.1.5
▣

Scoring & Timeline

7.4
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Aug 2021 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/octobercms/library/commit/016a297b1bec55d2e53bc889458ed2cb5c3e9374PatchThird Party Advisory
https://github.com/octobercms/library/commit/5bd1a28140b825baebe6becd4f7562299d3de3b9PatchThird Party Advisory
https://github.com/octobercms/october/security/advisories/GHSA-h76r-vgf3-j6w5PatchThird Party Advisory
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