CVE Vulnerability

CVE-2020-26231

October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. A bypass of CVE-2020-15247 (fixed in 1.0.469 and 1.1.0) was discovered that has the same impact as CVE-2020-15247. An authenticated backend user with the cms.manage_pages, cms.manage_layouts, or cms.manage_partials permissions who would normally not be permitted to provide PHP code to be executed by the CMS due to cms.enableSafeMode being enabled is able to write specific Twig code to escape the Twig sandbox and execute arbitrary PHP. This is not a problem for anyone that trusts their users with those permissions to normally write & manage PHP within the CMS by not having cms.enableSafeMode enabled, but would be a problem for anyone relying on cms.enableSafeMode to ensure that users with those permissions in production do not have access to write & execute arbitrary PHP. Issue has been patched in Build 470 (v1.0.470) and v1.1.1.

4.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

6.7 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/octobercms/october/security/advisories/GHSA-r89v-cgv7-3jhx Patch Third Party Advisory
https://github.com/octobercms/october/commit/d34fb8ab51108495a9a651b841202d935f4e12f7 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:octobercms:october:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:octobercms:october:1.0.469:*:*:*:*:*:*:*
Information

Published : 2020-11-23 09:15

Updated : 2020-12-08 06:57

NVD link : CVE-2020-26231

Mitre link : CVE-2020-26231

Products Affected
No products.
CWE
CWE-862