Is CVE-2026-15302 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-15302 being exploited in the wild.

How severe is CVE-2026-15302?

Medium severity, with a CVSS score of 5.3, published 10 July 2026.

Which products and versions are affected?

Repute InfoSystems ARMember up to, and including, 4.0.27.

Is there a fix for CVE-2026-15302?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-15302 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-15302?

Check whether you run Repute InfoSystems ARMember at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-15302: Repute InfoSystems ARMember directory traversal via X-FILENAME header

CVE-2026-15302 · Severity: medium · CVSS 5.3 · Published 2026-07-10

The ARMember plugin for WordPress, which manages site memberships and content restriction, contains a security flaw that allows unauthorized users to manipulate files. By sending a specially crafted request, an attacker can upload or overwrite certain files, such as stylesheets, outside of the intended storage folder. This could lead to the defacement of the website or disruption of its normal appearance and functionality.

Vendors: Repute InfoSystems.

Quick answers

Is CVE-2026-15302 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-15302 being exploited in the wild.
How severe is CVE-2026-15302?: Medium severity, with a CVSS score of 5.3, published 10 July 2026.
Which products and versions are affected?: Repute InfoSystems ARMember up to, and including, 4.0.27.
Is there a fix for CVE-2026-15302?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-15302 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-15302?: Check whether you run Repute InfoSystems ARMember at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The ARMember plugin for WordPress is vulnerable to a directory traversal flaw (CWE-36) within its file handling logic. The vulnerability exists because the plugin fails to properly sanitize the 'X-FILENAME' HTTP header during file upload operations. An unauthenticated remote attacker can exploit this by providing a path-traversal string (e.g., ../) in the header, allowing them to upload or overwrite files in arbitrary directories outside the intended 'wp-content/uploads/armember' path. While the impact is primarily limited to file integrity (such as overwriting CSS files), it poses a risk of site defacement. The issue is present in all versions up to 4.0.27.

Affected products

reputeinfosystems ARMember – Membership Plugin, Content Restriction, Member Levels, User Profile & User signup up to, and including, 4.0.27

Timeline

2026-07-10: disclosed
2026-07-10: advisory

References

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