Directory Traversal Vulnerability in ARMember Plugin for WordPress
CVE-2026-15302

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Armember – Membership Plugin, Content Restriction, Member Levels, User Profile & User Signup
Vendor
CVE Published:
10 July 2026

What is CVE-2026-15302?

The ARMember plugin for WordPress is affected by a directory traversal vulnerability that impacts all versions up to and including 4.0.27. This issue arises from improper validation of the 'X-FILENAME' HTTP header, which allows unauthenticated attackers to manipulate file uploads. As a result, attackers could upload and overwrite files, such as CSS files, to directories outside of the designated 'wp-content/uploads/armember' directory. This could lead to unauthorized access and potential exploitation of the affected system.

Affected Version(s)

ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup 0 <= 4.0.27

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3062692/arme...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lucio Sá
.