Relevanssi <= 4.24.5 (Free) and <= 2.27.6 (Premium) - Unauthenticated Stored Cross-Site Scripting via Excerpt Highlights

2025-05-30 14:49

Jack Taylor

Strategic Overview

Status

Patched in 2.27.7

Affected PluginRelevanssi Premium

Affected Version<= 2.27.6

CVSS4.7Medium

CVECVE-2025-5016

View all Relevanssi Premium vulnerabilities

Vulnerability Overview

The Relevanssi – A Better Search plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Excerpt Highlights in all versions up to, and including, 4.24.5 (Free) and 2.27.6 (Premium) 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.

Technical Analysis

REMEDIATION: Update to version 2.27.7, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2025-5016 https://www.wordfence.com/threat-intel/vulnerabilities/id/ffb2ade3-d5ce-4459-ab83-e28cd4c84922

CVSS Vector

4.7

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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