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

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Summary

CVECVE-2023-40000
StatePUBLISHED
AssignerPatchstack
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-04-16 18:15:10 UTC
Updated2026-04-28 19:21:06 UTC
DescriptionImproper 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.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1[email protected]Secondary8.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
3.1CNACVSS8.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Litespeedtech Litespeed Cache All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA LiteSpeed Technologies LiteSpeed Cache affected n/a 5.7 custom Not specified
ADP Litespeed Technologies Litespeed Cache affected 5.7 custom Not specified

References

ReferenceSourceLinkTags
github.com/rxerium/CVE-2023-40000 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit
patchstack.com/database/vulnerability/litespeed-cache/wordpress-litespeed-ca... af854a3a-2127-422b-91ae-364da2661108 patchstack.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Rafie Muhammad (Patchstack) (en)

Additional Advisory Data

Solutions

CNA: Update to 5.7.0.1 or a higher version.

Legacy QID Mappings

  • 731216 WordPress LiteSpeed Cache Cross-Site Scripting (XSS) Vulnerability
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