CVE-2023-40000
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 54.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 54.87% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- litespeedtech/litespeed cache
- Source
- audit@patchstack.com
EPSS 54.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://patchstack.com/database/vulnerability/litespeed-cache/wordpress-litespeed-cache-plugin-5-7-unauthenticated-site-wide-stored-xss-vulnerability?_s_id=cveThird Party Advisory
- https://patchstack.com/database/vulnerability/litespeed-cache/wordpress-litespeed-cache-plugin-5-7-unauthenticated-site-wide-stored-xss-vulnerability?_s_id=cveThird Party Advisory
- https://github.com/rxerium/CVE-2023-40000Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.