Stored Cross-Site Scripting Vulnerability in PPWP - Password Protect WordPress Plugin
CVE-2025-9878

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
PpWP – Password Protect Pages
Vendor
CVE Published:
25 August 2026

What is CVE-2025-9878?

A vulnerability exists in the PPWP - Password Protect WordPress plugin that allows authenticated users with contributor-level access and above to exploit insufficient input sanitization and output escaping. This flaw facilitates the injection of arbitrary web scripts through the 'ppwp' shortcode, leading to malicious code execution on any page accessed by users. All plugin versions up to and including 1.9.21 are affected, presenting a significant risk to WordPress sites utilizing this popular password protection tool.

Affected Version(s)

PPWP – Password Protect Pages 0 <= 1.9.21

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/password-prote...
https://reserach.cleantalk.org/CVE-2025-9878

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dmitrii Ignatyev
.