High severity7.4NVD Advisory· Published Aug 26, 2021· Updated Jun 17, 2026
CVE-2021-29487
CVE-2021-29487
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
october/systemPackagist | < 1.0.472 | 1.0.472 |
october/systemPackagist | >= 1.1.1, < 1.1.5 | 1.1.5 |
Affected products
3cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*range: >=1.0.471,<1.0.472
- (no CPE)range: >= 1.0.471, < 1.0.472
Patches
Vulnerability mechanics
References
5- github.com/octobercms/library/commit/016a297b1bec55d2e53bc889458ed2cb5c3e9374nvdPatchThird Party AdvisoryWEB
- github.com/octobercms/library/commit/5bd1a28140b825baebe6becd4f7562299d3de3b9nvdPatchThird Party AdvisoryWEB
- github.com/octobercms/october/security/advisories/GHSA-h76r-vgf3-j6w5nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-h76r-vgf3-j6w5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-29487ghsaADVISORY
News mentions
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