CVE-2026-101005
A vulnerability was detected in October CMS up to 4.3.4. This affects the function validateExternalImageHost of the file System/Classes/ResizeImages.php of the component SSRF Protection. The manipulation results in server-side request forgery. The attack may be launched remotely. The exploit is now public and may be used. Upgrading to version 4.3.5 is able to mitigate this issue. You should upgrade the affected component.
Published:Sep 28, 2026
Last Modified:Sep 28, 2026
EPS:Sep 28, 2026
EPSS Score:0.00298
CVSS Score:7.3
Affected Products
Vendor
Product
Action
Vendor
October Cms
Product
October Cms
October Cms
October Cms
Vendor
Octobercms
Product
October Cms
Octobercms
October Cms
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
