Vulnerability · Published Oct 16, 2026 · Assigned by Wordfence
CVE-2026-12272Lightweight Cookie Notice <= 1.19 - Sensitive Information Exposure via W3TC_DYNAMIC_SECURITY Constant
Medium 5.3
In plain English
A medium-severity weak randomness in Lightweight Cookie Notice – Cookie Banner for Cookie Consent from daext. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| daext | Lightweight Cookie Notice – Cookie Banner for Cookie Consent | 0 – through 1.19 |
Weakness: CWE-330 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N