WordPress security changelog
HIGH CVE-2026-84761 Deferred

LiteSpeed Cache permits unauthenticated server-side request forgery

LiteSpeed Cache through 7.9 allows an unauthenticated requester to influence a server-side request. The request can reach network resources available to the WordPress host and can expose or alter data returned through the affected flow.

CVE / CNA score 7.2 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
LiteSpeed Cache
Plugin slug
litespeed-cache
Affected
n/a through 7.9
Safe version
7.9.1
Published
Sep 03, 2026
Weakness
CWE-918 — Server-Side Request Forgery (SSRF)

This CVE was published Sep 03, 2026 and is one of 23 known issues for this plugin.

Update, patch or deactivate.

Update to 7.9.1 or later and review outbound-request logs and access to internal services from the WordPress host.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

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

Unauthenticated Server Side Request Forgery (SSRF) in LiteSpeed Cache <= 7.9 versions.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Primary and upstream sources