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01 Record

CVE-2023-40000

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

HighPUBLISHEDCNA: Patchstack
CNA base score8.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

02 Description

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

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
54.87% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 98.9% of scored records. A rank, not a probability.
NVD base score
6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-04-16 17:46Z2 YR AGO
Last updated
2026-04-28 16:08Z6 MO AGO
Reserved
2023-08-08
Assigning CNA
Patchstack
Record state
PUBLISHED
Severity
High (CVSS 8.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.2
Document digest
ade08f59b977c252d6b1a830c6c39be5d7307c3cb2a5b8fd410660289ae90674

05 Affected products

VendorProductVersionsPlatforms
LiteSpeed TechnologiesLiteSpeed Cache<= 5.7—
litespeed_technologieslitespeed_cache0 to 5.7—

06 References

07 Remediation

Update to 5.7.0.1 or a higher version.