CVE-2025-11241Network attack vector

Stored XSS via regex attribute-boundary consumption

Published Oct 3, 2025 · Updated Oct 3, 2025

Stored cross-site scripting in Yoast SEO Premium 25.7 through 25.9 allows remote authenticated users to inject script-bearing post content. An attribute-removal regular expression processes already-sanitized post HTML as raw text and can consume quote boundaries, promoting payload text into JavaScript event-handler attributes. Contributor-level edit_posts access and the plugin's AI feature being enabled are required; the stored script executes when affected content is rendered.

CVSS severity6.4
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Yoast SEO Premium 25.7 through 25.9 allows remote authenticated users to inject script-bearing post content. An attribute-removal regular expression processes already-sanitized post HTML as raw text and can consume quote boundaries, promoting payload text into JavaScript event-handler attributes. Contributor-level edit_posts access and the plugin's AI feature being enabled are required; the stored script executes when affected content is rendered.

The record

CVE
CVE-2025-11241
Published
Oct 3, 2025
Updated
Oct 3, 2025
Vendor
Yoast
Product
Yoast SEO Premium
Classifications
CWE-80, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=25.7 <=25.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Yoast · Yoast SEO Premiumversion=25.7 <=25.9

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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