CVE-2026-103339

MEDIUM 6.5

WordPress Metform plugin <= 4.3.0 - Cross Site Scripting (XSS) vulnerability

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Wpmet Metform metform allows Stored XSS.This issue affects Metform: from n/a through 4.3.0.

CWE	CWE-79
Vendor	wpmet
Product	metform
Published	Oct 1, 2026
Last Updated	Oct 1, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

Wpmet / Metform

0 ≤ 4.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/metform/vulnerability/wordpress-metform-plugin-4-3-0-cross-site-scripting-xss-vulnerability?_s_id=cve

Credits

Intrudify | Patchstack Bug Bounty Program