Yoast SEO Premium 25.7-25.9 - Authenticated (Contributor+) Stored Cross-Site Scripting

2025-10-02 00:00

stealthcopter

Strategic Overview

Status

Patched in 26.0

Affected PluginYoast SEO Premium

Affected Version25.7 – 25.9

CVSS6.4Medium

CVECVE-2025-11241

View all Yoast SEO Premium vulnerabilities

Vulnerability Overview

The Yoast SEO Premium plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions 25.7 to 25.9 due to a flawed regex used to remove an attribute in post content, which can be abused to inject arbitrary HTML attributes, including JavaScript event handlers. This vulnerability allows a user with Contributor access or higher to create a post containing a malicious JavaScript payload.

Technical Analysis

REMEDIATION: Update to version 26.0, or a newer patched version --- IDENTIFIER: CWE-80 (Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)) The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as <, >, and & that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.

External References

https://www.cve.org/CVERecord?id=CVE-2025-11241 https://www.wordfence.com/threat-intel/vulnerabilities/id/a6e3645d-ed1b-4c51-a463-c2691cb7168d

CVSS Vector

6.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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