CVE-2026-100909
highA vulnerability was found in OctoberCMS up to 4.1.19/4.2.25/4.3.4.
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/0xGenesi/CVE/blob/main/October_CMS_Stream_Wrapper_Injection.md cna@vuldb.com
- https://github.com/octobercms/october/commit/0e9736aa2c6d6bd3d60ff6ef9e0b4d32ce387f58 cna@vuldb.com
- https://github.com/octobercms/october/releases/tag/v4.3.5 cna@vuldb.com
- https://github.com/octobercms/october/security/advisories/GHSA-2xmm-m4wv-3fjh cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-100909 cna@vuldb.com
- https://vuldb.com/submit/919993 cna@vuldb.com
- https://vuldb.com/vuln/410869 cna@vuldb.com
- https://vuldb.com/vuln/410869/cti cna@vuldb.com