CVE-2026-27384

WordPress W3 Total Cache plugin <= 2.9.1 - Arbitrary Code Execution vulnerability

State: Published
Severity: 9.0 Critical
Published: Mar 5, 2026
Updated: Apr 29, 2026
Reserved: Feb 19, 2026

Description

Improper Validation of Specified Quantity in Input vulnerability in BoldGrid W3 Total Cache w3-total-cache allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects W3 Total Cache: from n/a through <= 2.9.1.

Scores

CVSS	Score	Vector	Source
3.1	9.0 Critical	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H	Patchstack
3.1	9.0 Critical	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-1284 Improper Validation of Specified Quantity in Input

Affected Products

Product	Versions
W3 Total CacheBoldGrid	2.9.1 and earlierAffectedfrom 2.9.2Not affected

References

https://patchstack.com/database/Wordpress/Plugin/w3-total-cache/vulnerability/wordpress-w3-total-cache-plugin-2-9-1-arbitrary-code-execution-vulnerability?_s_id=cvevdb-entry

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