What’s Vulnerable › Vulnerabilities

CVE-2026-15302: ARMember <= 4.0.27 - Directory Traversal via X-FILENAME

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-10 · updated 2026-07-14
• Weakness: CWE-36

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.

Affected products

• reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup: through 4.0.27

References

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

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