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CVE-2026-116522 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.28.5 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 site to have both the comment indexing and comment highlighting options enabled, and the payload only fires when a visitor reaches a singular page via a Relevanssi search-result permalink carrying the highlight query parameter.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:7.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/msaari/relevanssi/commit/b0324957b27e2dfc2aa116c96dcf578fbec9e0e5	[email protected]	Source Code
https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/common.php#L1037	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/excerpts-highlights.php#L1698	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/excerpts-highlights.php#L521	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/excerpts-highlights.php#L688	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/relevanssi/tags/4.28.5/lib/init.php#L140	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/changeset?reponame=&new=3767703%40relevanssi%2Ftags%2F4.28.6&old=3761637%40relevanssi%2Ftags%2F4.28.5	[email protected]	Source CodeVendor
https://www.wordfence.com/threat-intel/vulnerabilities/id/442403ae-9011-4373-a363-e98e07ec7e9b?source=cve	[email protected]	AdvisoryRemedy

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
Relevanssi	<= 4.28.5 (semver)
CPE cpe:2.3:a:relevanssi:relevanssi::::::wordpress::* Remediation Upgrade: 4.28.6moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 1, 2026	CVE Modified	CISA-ADP
Oct 31, 2026	New CVE Received	[email protected]