PatchSiren cyber security CVE debrief
CVE-2026-15302 reputeinfosystems CVE debrief
The ARMember plugin for WordPress has a Directory Traversal vulnerability in all versions up to, and including, 4.0.27. The vulnerability is caused by the plugin's improper handling of the 'X-FILENAME' HTTP header, allowing unauthenticated attackers to upload and overwrite certain files (e.g., CSS) to directories outside the 'wp-content/uploads/armember' directory. This vulnerability has a CVSS score of 5.3 and a severity rating of MEDIUM. Users of the ARMember plugin for WordPress should be aware of this vulnerability and take immediate action to update to a patched version.
- Vendor
- reputeinfosystems
- Product
- ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup
- CVSS
- MEDIUM 5.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-10
- Original CVE updated
- 2026-07-10
- Advisory published
- 2026-07-10
- Advisory updated
- 2026-07-10
Who should care
Users of the ARMember plugin for WordPress, web application security teams, and administrators responsible for WordPress installations with the ARMember plugin should prioritize patching and monitoring for potential exploitation.
Technical summary
The ARMember plugin for WordPress is vulnerable to Directory Traversal due to improper handling of the 'X-FILENAME' HTTP header. This allows unauthenticated attackers to upload and overwrite files outside the intended 'wp-content/uploads/armember' directory. The vulnerability has a CVSS score of 5.3 and a severity rating of MEDIUM. Affected product deployments should be reviewed for exposure and patched or mitigated accordingly.
Defensive priority
Medium priority should be given to patching this vulnerability, as it allows for potential unauthorized file uploads and overwrites.
Recommended defensive actions
- Update the ARMember plugin to a patched version (if available)
- Monitor for suspicious file upload activity
- Implement additional security measures to restrict file uploads and directory traversal attempts
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
The CVE record was published on 2026-07-10T05:16:33.677Z and last modified on 2026-07-10T15:43:30.330Z. The NVD entry is currently Deferred. The ARMember plugin for WordPress has a Directory Traversal vulnerability in all versions up to, and including, 4.0.27. The vulnerability is caused by the plugin's improper handling of the 'X-FILENAME' HTTP header, allowing unauthenticated attackers to upload and overwrite certain files (e.g., CSS) to directories outside the 'wp-content/uploads/armember' directory. Evidence is limited to public CVE and NVD information.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-10T05:16:33.677Z and has not been modified since then. The NVD entry is currently Deferred.