e107 CMS thru 2.3.3 are vulnerable to insecure deserialization in the `install.php` script. The script processes user-controlled input in the `previous_steps` POST parameter using `unserialize(base64_decode())` without validation, allowing attackers to craft malicious serialized data. This could lead to remote code execution, arbitrary file operations, or denial of service, depending on available PHP object gadgets in the codebase.
History

Fri, 10 Oct 2025 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 10 Oct 2025 18:45:00 +0000

Type Values Removed Values Added
Description e107 CMS thru 2.3.3 are vulnerable to insecure deserialization in the `install.php` script. The script processes user-controlled input in the `previous_steps` POST parameter using `unserialize(base64_decode())` without validation, allowing attackers to craft malicious serialized data. This could lead to remote code execution, arbitrary file operations, or denial of service, depending on available PHP object gadgets in the codebase.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-10-10T19:02:22.126Z

Reserved: 2025-09-26T00:00:00.000Z

Link: CVE-2025-61505

cve-icon Vulnrichment

Updated: 2025-10-10T19:02:17.519Z

cve-icon NVD

Status : Received

Published: 2025-10-10T19:15:38.257

Modified: 2025-10-10T19:15:38.257

Link: CVE-2025-61505

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.