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TI-2026-08154 Aliases CVE-2026-9282GHSA-cx46-vqrj-hfqm

W3 Total Cache <= 2.9.4 - Unauthenticated Arbitrary File Read via 'f_array[]' Parameter

Priority MEDIUM 44CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

The W3 Total Cache plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.9.4 via the setupSources function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires enabling manual minify mode and supplying a manual-format minify filename so that the hash is empty and the f_array[] entries are not overwritten before reaching setupSources().

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02861 86th 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
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
BoldGridW3 Total Cacheup to 2.9.4—No fix listedCNA
  • W3 Total Cache VendorBoldGrid Affected up to 2.9.4 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

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

CPEVersionsRoleVendor
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

  1. 2026-10-02 Threatist record created from CVE-2026-9282
  2. 2026-10-03 Alias added: GHSA-cx46-vqrj-hfqm

References

Other 6

  • 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-2024-11141 W3 Total Cache <= 2.8.1 Information Exposure via Log Files CVSS 3.1HIGH 7.5
  • TI-2020-18983 Total Upkeep by BoldGrid <= 1.14.9 - Unauthenticated Backup Download 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