CVE-2026-1261
Received Received - Intake

Stored XSS in MetForm Pro Quiz Allows Script Injection

Publication date: 2026-03-10

Last updated on: 2026-03-10

Assigner: Wordfence

Description
The MetForm Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Quiz feature in all versions up to, and including, 3.9.6 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.

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Meta Information

Published
2026-03-10
Last Modified
2026-03-10
Generated
2026-07-06
AI Q&A
2026-03-10
EPSS Evaluated
2026-07-05
NVD
CVE-2026-1261
EUVD
EUVD-2026-10479

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
metform metform_pro to 3.9.6 (inc)
wpmet metform to 3.9.6 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 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.

Attack-Flow Graph

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Executive Summary

The MetForm Pro plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in its Quiz feature in all versions up to and including 3.9.6. This vulnerability arises because the plugin does not properly sanitize input or escape output, allowing attackers to inject malicious web scripts.

These injected scripts are stored and then executed whenever a user accesses the affected page, potentially compromising the user's browser.

Impact Analysis

This vulnerability allows unauthenticated attackers to inject arbitrary scripts that execute in the context of users visiting the affected pages.

  • Attackers could steal sensitive information such as cookies or session tokens.
  • It could lead to account takeover or unauthorized actions performed on behalf of users.
  • It may also be used to deliver malware or redirect users to malicious sites.
Compliance Impact

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Detection Guidance

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Mitigation Strategies

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