CVE-2026-103426Relevanssi Premium <= 2.31.4 - Unauthenticated Stored Cross-Site Scripting via '_rt' Parameter
Updated under an hour ago ()
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It affects Relevanssi Premium. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.23%, higher than 13% of scored CVEs.
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The Relevanssi Premium plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '_rt' parameter in all versions up to, and including, 2.31.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the click-tracking and logging feature to be activated in the plugin settings, and exploitation is trivially accessible to unauthenticated users because a valid _rt_nonce is publicly emitted on every search-results page.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.23% (percentile 13)
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Oct 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Relevanssi Relevanssi Premium relevanssi:premium (from the name) | through 2.31.4 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/769a39e0-f626-4c48-a1bb-c9f2402b3098?source=cve
- https://www.relevanssi.com/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.