TI-2026-21800 Aliases CVE-2026-27384 GHSA-g2g2-5q7p-hmf2

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

MEDIUM 41CWE-1284Published 2026-03-05 · Updated 2026-04-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00356 29th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
BoldGrid	W3 Total Cache	up to 2.9.1	—	No fix listed	CNA

W3 Total Cache VendorBoldGrid Affected up to 2.9.1 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:boldgrid:w3_total_cache::::::::	—	—	BoldGrid

cpe:2.3:a:boldgrid:w3_total_cache:*:*:*:*:*:*:*:* Versions — — ·BoldGrid

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-27384
2026-10-03 Alias added: GHSA-g2g2-5q7p-hmf2

References

Other 1

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

TI-2013-01782 WordPress W3 Total Cache Plugin 0.9.2.8 has a Remote PHP Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
TI-2019-04758 pub/sns.php in the W3 Total Cache plugin before 0.9.4 for WordPress allows remote… CVSS 3.1HIGH 7.5
TI-2025-39670 WordPress Client Invoicing by Sprout Invoices plugin <= 20.8.7 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
TI-2026-04390 W3 Total Cache <= 2.9.3 - Unauthenticated Security Token Exposure via User-Agent Header CVSS 3.1HIGH 7.5
TI-2026-08154 W3 Total Cache <= 2.9.4 - Unauthenticated Arbitrary File Read via 'f_array[]' Parameter CVSS 3.1HIGH 7.5
TI-2024-11141 W3 Total Cache <= 2.8.1 Information Exposure via Log Files CVSS 3.1HIGH 7.5

See all 67 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences