CVE-2026-27384

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

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.

Affected

BoldGrid · W3 Total Cache

CVSS v3.1 CNA

9.0 CRITICALCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS

0.45% chance of exploitation in the next 30 days, 38th percentile

Published

2026-03-05

Updated

2026-04-29

Proof-of-concept exploits (1)

• xxconi/CVE-2026-273840★ · 2026-05-26

References

• CVE Record
• NVD entry

Related

• CVE-2025-13407
• CVE-2025-5947
• CVE-2025-6254
• CVE-2026-10735
• CVE-2026-12415
• CVE-2026-12416