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CVE-2023-40000

WordPress LiteSpeed Cache plugin <= 5.7 - Unauthenticated Site Wide Stored XSS vulnerability

Published: Apr 16, 2024Updated: Apr 28, 2026 Sources: CVE List NVD BDUCWE-79
NVD MITRE
8.3CVSSHIGH
EPSS Score
54.9%
Top 1.1%
CISA KEV
Not in KEV
Exploits
3 Known
Remediation
Patch Available
Am I actually vulnerable?2 Nuclei templates available — see how to check your systems. How to verify

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in LiteSpeed Technologies LiteSpeed Cache allows Stored XSS.This issue affects LiteSpeed Cache: from n/a through 5.7.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-79

Affected Products

LiteSpeed Cache for WordPress (LSCWP)LiteSpeed Technologies
On-prem
Networking Infrastructure / load-balancer-proxy
LiteSpeed CacheLiteSpeed Technologies
On-prem
Networking Infrastructure / load-balancer-proxy
litespeed cachelitespeedtech
On-prem
Networking Infrastructure / load-balancer-proxy
litespeed technologiescommercialUSNetworking Infrastructureaka openlitespeed, litespeed web server
litespeedtechcommercialNetworking Infrastructureaka openlitespeed, litespeed web server, litespeed cache

Attack Graph

Products CVE Techniques Tactics

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Exploitability

3 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://www.securitylab.ru/news/546363.php&#13;
securitylab.ru
https://wordpress.org/plugins/litespeed-cache/&#13;
wordpress.org
https://securityaffairs.com/159667/hacking/litespeed-cache-plugin-xss.html&#13;
securityaffairs.com
and 5 more references View all →

Timeline

Published
Apr 16, 2024
Last Updated
Apr 28, 2026

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