Cross-Site Scripting Vulnerability in Wpmet Metform Plugin
CVE-2026-103339

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Metform
Vendor
CVE Published:
1 October 2026

What is CVE-2026-103339?

The Wpmet Metform plugin for WordPress has a security vulnerability related to improper input neutralization during web page generation. This vulnerability allows an attacker to execute arbitrary JavaScript code in the context of a user's browser by exploiting stored cross-site scripting (XSS). Affected users of Metform—from any version prior to 4.3.0—are advised to update their plugins immediately to mitigate risks associated with this flaw. Ensure your website's security by maintaining updated and secure plugins.

Affected Version(s)

Metform 0 <= 4.3.0

References

https://patchstack.com/database/wordpress/plugin/metform/...
vdb-entry

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Intrudify | Patchstack Bug Bounty Program
.