CVE-2026-18645

LOW CVSS 4.0: 2.1 EPSS 0.43%
Updated Aug 04, 2026
PHP
Parameter Value
CVSS 2.1 (LOW)
Type CWE-22 (Path Traversal)
Vendor PHP
Public PoC No

A security flaw has been discovered in danpros HTMLy up to 3.1.1. This affects the function add_content of the file /system/admin/admin.php of the component Admin Content Endpoint. Performing a manipulation of the argument oldfile results in path traversal.

The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0

Weakness Type (CWE)