W3 Total Cache: A security weakness
W3 Total Cache is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- W3 Total Cache
- Plugin slug
w3-total-cache- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 17, 2025
- Weakness
- Not assigned
This CVE was published Nov 17, 2025 and is one of 19 known issues for this plugin.
Update, patch or deactivate.
Update W3 Total Cache to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The W3 Total Cache WordPress plugin before 2.8.13 is vulnerable to command injection via the _parse_dynamic_mfunc function, allowing unauthenticated users to execute PHP commands by submitting a comment with a malicious payload to a post.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H