CVE-2025-9878CWE-79cross-site-scripting

CVE-2025-9878

Medium · published August 25, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
7.9
In the wild
Unconfirmed
What it is

The PPWP – Password Protect WordPress | #1 Most-Reviewed Password Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ppwp' shortcode in all versions up to, and including, 1.9.21 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00188 · 7.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-25T07:16Z
References (5)
https://plugins.trac.wordpress.org/browser/password-protect-page/tags/1.9.12/includes/services/class-ppw-shortcode.php#L544 · [email protected]https://plugins.trac.wordpress.org/changeset?reponame=&old=3637624%40password-protect-page&new=3637624%40password-protect-page · [email protected]https://plugins.trac.wordpress.org/changeset?reponame=&old=3642939%40password-protect-page&new=3642939%40password-protect-page · [email protected]https://reserach.cleantalk.org/CVE-2025-9878 · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/99772f4b-4152-42dc-8bde-697bba3d031f?source=cve · [email protected]
EPSS history
Timeline
  • 26 AUG 07:27Z
    EPSS moved — → 0%
    epss
  • 25 AUG 02:26Z
    Password Protect WordPress Lite <= 1.9.21 - Authenticated (Contributor+) Stored Cross-Site Scripting
    cvelistv5