CVE-2026-12272CWE-330

CVE-2026-12272

Medium · published October 16, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
11.2
In the wild
Unconfirmed
What it is

The Lightweight Cookie Notice – Cookie Banner for Cookie Consent plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.19 This is due to the W3TC_DYNAMIC_SECURITY constant being hardcoded to a publicly known value. This makes it possible for unauthenticated attackers to know the W3 Total Cache mfunc security key, which when W3 Total Cache is installed may allow arbitrary PHP code injection.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00214 · 11.2th percentile
Weakness
CWE-330 · Use of Insufficiently Random Values
Published
2026-10-16T10:17Z
References (2)
https://plugins.trac.wordpress.org/changeset/3584811/lightweight-cookie-notice-free/trunk/public/class-daextlwcnf-public.php · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/54e53420-aa89-49d6-9632-cba066c46a51?source=cve · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 16 OCT 05:30Z
    Lightweight Cookie Notice <= 1.19 - Sensitive Information Exposure via W3TC_DYNAMIC_SECURITY Constant
    cvelistv5
  • 16 OCT 05:30Z
    Lightweight Cookie Notice <= 1.19 - Sensitive Information Exposure via W3TC_DYNAMIC_SECURITY Constant
    cvelistv5