ARMember <= 4.0.27 - Directory Traversal via X-FILENAME

Description

The ARMember plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.0.27 via the 'X-FILENAME' HTTP header. This makes it possible for unauthenticated attackers to upload and overwrite certain files (e.g., CSS) to directories outside the 'wp-content/uploads/armember' directory.

Scores

EPSS (exploitation in 30 days)

0.72% · top 46% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

• CWE-36 Absolute Path Traversal (opens in a new tab)All about CWE-36 and its CVEs

Affected products

• reputeinfosystems · ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup

  • affected ≤ 4.0.27

References (2)

• https://www.wordfence.com/threat-intel/vulnerabilities/id/2c8734f5-4d23-454d-bf00-6e9d36982098?source=cve (opens in a new tab)
• https://plugins.trac.wordpress.org/changeset/3062692/armember-membership/trunk/core/classes/class.arm_members_activity.php (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-15302](https://trackcve.app/badge/CVE-2026-15302.svg)](https://trackcve.app/cve/CVE-2026-15302)

Record last updated 14 Jul 2026, 01:33 UTC.