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CVE-2026-100909: Server-Side Request Forgery in OctoberCMS

0
Medium
VulnerabilityCVE-2026-100909cvecve-2026-100909
Published: 09/28/2026 (09/28/2026, 04:30:10 UTC)
Source: CVE Database V5
Product: OctoberCMS

Description

A vulnerability was found in OctoberCMS up to 4.1.19/4.2.25/4.3.4. The impacted element is the function getSourcePathForResize of the file modules/system/classes/ResizeImages.php. The manipulation of the argument realSourcePath results in server-side request forgery. The attack may be performed from remote. The exploit has been made public and could be used. Upgrading to version 4.3.5 and 4.4.0 is sufficient to resolve this issue. The patch is identified as 0e9736aa2c6d6bd3d60ff6ef9e0b4d32ce387f58. The affected component should be upgraded.

CVSS v4.0

Score 6.9medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Affected software

OctoberCMS

Affected versions
=4.1.0=4.1.1=4.1.2=4.1.3=4.1.4=4.1.5=4.1.6=4.1.7=4.1.8=4.1.9=4.1.10=4.1.11=4.1.12=4.1.13=4.1.14=4.1.15=4.1.16=4.1.17=4.1.18=4.1.19=4.2.0=4.2.1=4.2.2=4.2.3=4.2.4=4.2.5=4.2.6=4.2.7=4.2.8=4.2.9=4.2.10=4.2.11=4.2.12=4.2.13=4.2.14=4.2.15=4.2.16=4.2.17=4.2.18=4.2.19=4.2.20=4.2.21=4.2.22=4.2.23=4.2.24=4.2.25=4.3.0=4.3.1=4.3.2=4.3.3=4.3.4
CPE configurations
cpe:2.3:a:octobercms:octobercms:*:*:*:*:*:*:*:*

Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-09-27T10:19:16.000Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6ab9f19df7a7c54106278455

Added to database: 09/28/2026, 04:48:29 UTC

Last updated: 09/28/2026, 04:48:29 UTC

Views: 1

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