CVE-2023-40000
PUBLISHEDWordPress LiteSpeed Cache plugin <= 5.7 - Unauthenticated Site Wide Stored XSS vulnerability
Recommended Action
Track for updates. Assess relevance to your asset inventory and enrichment workflows.
At a Glance
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.
- CVE Published
- Apr 16, 2024
- —
- —
- CVSS
- 8.3 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| litespeed_technologies |
litespeed_cache
|
0 to <= 5.7 |
Affected |
| LiteSpeed Technologies |
LiteSpeed Cache
|
n/a to <= 5.7 Changed to unaffected at 5.7.0.1 |
Affected |
CVE References
- VDB Entry — patchstack.com patchstack.com · VDB Entry https://patchstack.com/database/vulnerability/litespeed-cache/wordpre...
Recommended Actions
- Track for updates. Assess relevance to your asset inventory and enrichment workflows.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-40000.yaml | Jun 01, 2026 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Exploitation Status
Proof of concept available
Recorded 2024-02-28 19:36:40 UTC · GitHub
Weaknesses (CWE)
-
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-40000.yaml | Jun 01, 2026 |
| Nessus | https://www.tenable.com/plugins/nessus/206970 | Sep 11, 2024 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2024-02-28 19:36:40 UTC · 6 stars
LiteSpeed Cache plugin for WordPress that could enable unauthenticated users to escalate their privileges
nuclei · Created Unknown
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
15:34 UTC about 2 months ago15:34 UTC · about 2 months ago
Nuclei template available
Scanner coverage available
-
12:37 UTC almost 2 years ago12:37 UTC · almost 2 years ago
Nessus plugin available
Scanner coverage available
-
17:46 UTC over 2 years ago17:46 UTC · over 2 years ago
CVE published
Vulnerability disclosed publicly
-
19:36 UTC over 2 years ago19:36 UTC · over 2 years ago
Public PoC available
Public proof-of-concept code published
-
11:43 UTC almost 3 years ago11:43 UTC · almost 3 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2023-40000
{
"cve_id": "CVE-2023-40000",
"title": "WordPress LiteSpeed Cache plugin <= 5.7 - Unauthenticated Site Wide Stored XS...",
"affected_vendor": "LiteSpeed Technologies",
"affected_product": "LiteSpeed Cache",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": null,
"cvss_score": 8.3,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": false,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}