CVE-2026-116522: Relevanssi (WordPress plugin) · Cross-site Scripting
Affects Relevanssi (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 7.2 High.
Data as of 31 Oct 2026, 07:20 UTC
Thin evidence
One scorer or none| CNA (Wordfence) | CVSS 3.1 | 7.2 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| comesioRelevanssi – A Better Search | Affected
| Fixed in– |
AI-suggested
Users should verify if a vendor advisory or update is available for Relevanssi – A Better Search plugin beyond version 4.28.5. Until a fix is released, it is recommended to disable comment indexing and comment highlighting features to prevent exploitation of this vulnerability.
Description
The Relevanssi – A Better Search WordPress plugin is vulnerable to a stored cross-site scripting (XSS) flaw via the 'comment' parameter in versions up to and including 4.28.5. This vulnerability allows unauthenticated attackers to inject malicious scripts that execute when users visit a page accessed through a Relevanssi search-result permalink with the highlight query parameter. The exploit requires both comment indexing and comment highlighting features to be enabled.
References
- wordfence.com/threat-intel/vulnerabilities/id/442403ae-9011-4373-a363-e98e07ec7e9b?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/excerpts-highlights.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/excerpts-highlights.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/excerpts-highlights.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/init.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/common.php (opens in a new tab)
- github.com/msaari/relevanssi/commit/b0324957b27e2dfc2aa116c96dcf578fbec9e0e5 (opens in a new tab)
- plugins.trac.wordpress.org/changeset?reponame=&new=3767703%40relevanssi%2Ftags%2F4.28.6&old=3761637%40relevanssi%2Ftags%2F4.28.5 (opens in a new tab)