CVE-2026-10779: RadiusTheme Classified Listing missing authorization in AJAX handler

CVE-2026-10779 · Severity: medium · CVSS 4.3 · Published 2026-06-19

The Classified Listing plugin for WordPress, which allows users to create and manage business directories, contains a security flaw in how it handles image updates. An attacker with a basic user account can change the featured image of any listing on the site, even those they do not own. This could be used to deface business listings or disrupt the professional appearance of the directory.

Technologies: RadiusTheme Classified Listing. Vendors: RadiusTheme.

Quick answers

Is CVE-2026-10779 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-10779 being exploited in the wild.
How severe is CVE-2026-10779?
Medium severity, with a CVSS score of 4.3, published 19 June 2026.
Which products and versions are affected?
RadiusTheme Classified Listing up to, and including, 5.4.2.
Is there a fix for CVE-2026-10779?
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-2026-10779 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-10779?
Check whether you run RadiusTheme Classified Listing 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 vulnerability exists in the 'gallery_image_update_as_feature' AJAX handler (action: rtcl_fb_gallery_image_update_as_feature) due to a lack of capability or ownership checks. While the handler validates a security nonce, this nonce is exposed to any logged-in user via the frontend listing-submission form. An authenticated attacker can provide a listing ID and an attachment ID to update the featured image of any listing. This is classified as a Missing Authorization (CWE-862) issue. The vulnerability is present in all versions up to 5.4.2.

Affected products

  • RadiusTheme (techlabpro1) Classified Listing – Classified ads & Business Directory up to, and including, 5.4.2

Timeline

  • 2026-06-19: disclosed
  • 2026-06-19: advisory

References

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