CVE-2021-32649 - CVE House

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Status published High CVE-2021-32649

Authenticated file write leads to remote code execution in october/system

8.8 CVSS

Vulnerability Description

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 "create, modify and delete website pages" privileges in the backend is able to execute PHP code by running specially crafted Twig code in the template markup. 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from octobercms

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October CMS Vulnerable to Stored XSS via Branding Styles

October CMS Vulnerable to Stored XSS via Editor and Branding Styles

October CMS Allows Unprotected SVG Rename in Media Manager

Reflected XSS via X-October-Request-Handler Header

October Open Redirect for Administrator Accounts

Affected Vendor

octobercms

View all reports →

Affected Software

october

Vulnerable Versions:

< 1.0.473, >= 1.1.0, < 1.1.6

Timeline

Official Publish: January 14th, 2022

Last Modified: April 23rd, 2025

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1059 Command and Scripting Interpreter

T1562 Impair Defenses

Defense Evasion

T1213 Data from Information Repositories