CVE-2026-14995CWE-79cross-site-scripting

CVE-2026-14995

High · published October 1, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
19.8
In the wild
Unconfirmed
What it is

The Autoptimize plugin for WordPress is vulnerable to Stored Cross-Site Scripting via REQUEST_URI Path in all versions up to, and including, 3.1.15.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the Critical CSS feature to be active with a valid API key configured, as this is the precondition for unauthenticated frontend requests to trigger queue entries via ao_ccss_enqueue().

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00284 · 19.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-10-01T13:17Z
References (6)
https://plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.15.1/classes/autoptimizeCriticalCSSEnqueue.php#L218 · [email protected]https://plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.15.1/classes/autoptimizeCriticalCSSEnqueue.php#L57 · [email protected]https://plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.15.1/classes/critcss-inc/admin_settings_queue.js.php#L125 · [email protected]https://plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.15.1/classes/critcss-inc/admin_settings_queue.php#L82 · [email protected]https://plugins.trac.wordpress.org/changeset?reponame=&old=3713884%40autoptimize&new=3713884%40autoptimize · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/1704cffa-75ed-415e-864f-de7ff8eea8dc?source=cve · [email protected]
EPSS history
Timeline
  • 03 OCT 03:42Z
    EPSS moved — → 0%
    epss
  • 01 OCT 08:28Z
    Autoptimize <= 3.1.15.1 - Unauthenticated Stored Cross-Site Scripting via REQUEST_URI Path
    cvelistv5