Arbitrary code execution in october/system

published 2022-01-14 4 y ago modified 2026-07-08 4 mo ago also GHSA-5hfj-r725-wpc4 , EUVD-2022-0465

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.2%; EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits: 0; none known

October CMS is a self-hosted content management system (CMS) platform based on the Laravel PHP Framework. Prior to versions 1.0.473 and 1.1.6, an attacker with access to the backend is able to execute PHP code by using the theme import feature. This will bypass the safe mode feature that prevents PHP execution in the CMS templates.The issue has been patched in Build 473 (v1.0.473) and v1.1.6. Those unable to upgrade may apply the patch to their installation manually as a workaround.

Patch / fix

fixed in 1 links 1

packagist october/system 1.0.473, 1.1.6

github.com/octobercms/october@167b592 commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 18 mo ago (2025-04-22)

Exploit prediction

2.16% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/octobercms/october/security/advisories/GHSA-5hfj-r725-wpc4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
packagist	october/system	>=1.1.0, <1.1.6 <1.0.473	1.1.6 1.0.473

Affected products

octobercms october

Classification

Weakness

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
CWE-94 Improper Control of Generation of Code

References

github.com /octobercms/october/commit/167b592eed291ae1563c8fcc5b9b34a03a300f26
web, patch, third-party-advisory
github.com /octobercms/october/security/advisories/GHSA-5hfj-r725-wpc4
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2021-32650
advisory
github.com /octobercms/october
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary