Quick answers
- Is CVE-2026-15941 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-15941 being exploited in the wild.
- How severe is CVE-2026-15941?
- Medium severity, with a CVSS score of 6.5, published 5 August 2026.
- Which products and versions are affected?
- Relevanssi before 4.27.1.
- Is there a fix for CVE-2026-15941?
- 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-2026-15941 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-15941?
- Check whether you run Relevanssi 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
This is a SQL injection vulnerability in Relevanssi's AJAX handler for the Admin Search feature. The vulnerability exists in the taxonomy query builder: user-controlled taxonomy values from the `args` parameter are sanitized as text but are not parameterized before being interpolated directly into a term taxonomy lookup SQL query. An authenticated attacker with the `edit_posts` capability (contributor-level or higher) can exploit this via the AJAX endpoint to execute time-based blind SQL injection attacks. The vulnerable code is in the taxonomy restriction builder that processes taxonomy data passed through the Admin Search request. Fixes and patches are likely available from the Relevanssi development team.
Affected products
- Relevanssi Relevanssi before 4.27.1
Timeline
- 2026-08-05: disclosed