Relevanssi <= 4.27.1 and Relevanssi Premium <= 2.30.2 - Authenticated (Contributor+) SQL Injection
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
The plugin provides an Admin Search page that allows users with the `edit_posts` capability to run Relevanssi searches from the WordPress dashboard. The AJAX handler accepts a URL-encoded `args` parameter, parses it into a `WP_Query`, and then passes user-controlled taxonomy query data into Relevanssi's taxonomy restriction builder. The taxonomy value is sanitized as text but is not parameterized for SQL before being interpolated into a term taxonomy lookup query. This allows an authenticated contributor-level attacker to inject SQL through the Admin Search AJAX request and execute time-based blind SQL injection against the WordPress database.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15941
- 2026-10-03 Alias added: GHSA-q96m-48w3-jqmx
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4f96b87a-1405-4cf6-b903-ad0c7c8e2826?source=cve
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.27.1/lib/search-tax-query.php#L411
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.27.1/lib/admin-ajax.php#L195
- https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.27.1/lib/search.php#L969
More comesio vulnerabilities
- TI-2023-06585 Relevanssi (Free < 4.22.0, Premium < 2.25.0) - Unauthenticated Private/Draft Post Disclosure CVSS 3.1MEDIUM 5.3
- TI-2024-01287 Missing authorization in comesio Relevanssi Premium CVSS 3.1MEDIUM 5.3
- TI-2024-08374 Relevanssi < 4.23.1 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2024-03012 Relevanssi – A Better Search <= 4.22.1 - Unauthenticated Second Order CSV Injection CVSS 3.1CRITICAL 9.8
- TI-2025-03923 Relevanssi <= 4.24.4 (Free) and <= 2.27.5 (Premium) - Unauthenticated SQL Injection CVSS 3.1HIGH 7.5
- TI-2024-03011 Relevanssi – A Better Search <= 4.22.1 - Missing Authorization to Unauthenticated Count Option Update CVSS 3.1HIGH 8.2
Sources
- CVE-2026-15941 · CVE Program
- CVE-2026-15941 · NVD
- FIRST EPSS
- GHSA-q96m-48w3-jqmx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences