Uptime Kuma has Persistentent User Sessions
Priority HIGH 69CWE-384Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-384.
Summary
Uptime Kuma is a self-hosted monitoring tool. Prior to version 1.23.3, attackers with access to a user's device can gain persistent account access. This is caused by missing verification of Session Tokens after password changes and/or elapsed inactivity periods. Version 1.23.3 has a patch for the issue.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00282 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed uptime-kuma (louislam): 1.23.3uptime-kuma (npm): 1.23.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| louislam | uptime-kuma | before 1.23.3 | 1.23.3 | Patch available | CNA |
| — | uptime-kuma (npm) | before 1.23.3 | 1.23.3 | Patch available | GHSA-g9v2-wqcj-j99g |
- uptime-kuma Vendorlouislam Affected before 1.23.3 Fixed in 1.23.3 Patch available CNA
- uptime-kuma (npm) Vendor— Affected before 1.23.3 Fixed in 1.23.3 Patch available GHSA-g9v2-wqcj-j99g
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:uptime.kuma:uptime_kuma:*:*:*:*:*:*:*:* | before 1.23.3 | Vulnerable | Uptime.kuma |
- cpe:2.3:a:uptime.kuma:uptime_kuma:*:*:*:*:*:*:*:* Versions before 1.23.3 Vulnerable ·Uptime.kuma
Remediation
- Fix · CNA uptime-kuma (louislam) Fixed in 1.23.3
- Fix · GHSA-g9v2-wqcj-j99g uptime-kuma (npm) Fixed in 1.23.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-44400
- 2026-10-03 Alias added: GHSA-g9v2-wqcj-j99g
References
More louislam vulnerabilities
- TI-2026-51249 Path traversal in louislam dockge CVSS 4.0HIGH 8.7
- TI-2024-37292 Local File Inclusion (LFI) via Improper URL Handling in uptime-kuma's `Real-Browser` monitor CVSS 3.1MEDIUM 6.8
- TI-2026-49952 Uptime Kuma Stored XSS via Matomo Analytics Site ID on Public Status Pages CVSS 3.1HIGH 8.1
- TI-2026-83016 Race condition in Uptime Kuma lets attackers create extra admins CVSS 4.0MEDIUM 6.3
Sources
- CVE-2023-44400 · CVE Program
- CVE-2023-44400 · NVD
- FIRST EPSS
- GHSA-g9v2-wqcj-j99g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences