EUVD-2026-43164
GHSA-cx46-vqrj-hfqm
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Network and unauthenticated (AV:N/PR:N), but the required non-default manual-minify configuration and crafted empty-hash filename make success condition-dependent (AC:H); confidentiality-only file read (C:H, I/A:N).
Primary rating from Vendor (wordfence).
CVSS VectorVendor: wordfence
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
2DescriptionCVE.org
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().
Articles & Coverage 1
AnalysisAI
Arbitrary file disclosure in the W3 Total Cache plugin for WordPress (versions ≤ 2.9.4) lets remote unauthenticated attackers read any file readable by the web server via a path traversal in the Minify subsystem's setupSources function. Exploitation is gated on the site running manual minify mode with a crafted manual-format filename, so it is not universally triggerable, and there is no public exploit identified at time of analysis. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target site to have the W3 Total Cache Minify feature configured in manual minify mode, and the attacker must supply a manual-format minify filename crafted so the computed hash is empty and the f_array[] source entries are not overwritten before reaching setupSources(). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, base 7.5) rates this HIGH with network, unauthenticated, low-complexity access and high confidentiality impact only - no integrity or availability effect. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | On a WordPress site running W3 Total Cache ≤ 2.9.4 with manual minify enabled, an unauthenticated attacker sends a crafted minify request whose manual-format filename yields an empty hash, causing traversal source paths to survive into setupSources(). The response returns the contents of a targeted file such as wp-config.php, leaking database credentials and secret keys. … |
| Remediation | Upgrade W3 Total Cache to the version above 2.9.4 that includes the upstream fix committed in changeset r3585227 (https://plugins.trac.wordpress.org/changeset?reponame=&old=3585227%40w3-total-cache&new=3585227%40w3-total-cache); the input does not name an exact released tag, so confirm the fixed release number in the Wordfence advisory (https://www.wordfence.com/threat-intel/vulnerabilities/id/e92cc06d-006f-4bba-a4ef-b23d80c00085) before deploying. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Audit all WordPress installations for W3 Total Cache plugin presence and determine which sites have manual minify mode enabled. …
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Same weakness CWE-22 – Path Traversal
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External POC / Exploit Code
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