CVE-2025-14138: WPLG Default Mail From <= 1.0.0 - Reflected Cross-Site Scripting via $_SERVER['PHP_SELF']

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-12 · updated 2026-10-07
Weakness: CWE-79

Description

The WPLG Default Mail From plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `$_SERVER['PHP_SELF']` variable in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Affected products

wpletsgo WPLG Default Mail From: through 1.0.0

References

https://plugins.trac.wordpress.org/browser/wplg-default-mail-from/tags/1.0.0/wplg.php#L134
https://plugins.trac.wordpress.org/browser/wplg-default-mail-from/trunk/wplg.php#L134
https://www.wordfence.com/threat-intel/vulnerabilities/id/fd24b087-83a7-4f9a-8f7a-1bd94332c1f7?source=cve

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