Uptime Kuma authenticated path traversal via plugin repository name may lead to unavailability or data loss
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
Uptime Kuma, a self-hosted monitoring tool, has a path traversal vulnerability in versions prior to 1.22.1. Uptime Kuma allows authenticated users to install plugins from an official list of plugins. This feature is currently disabled in the web interface, but the corresponding API endpoints are still available after login. Before a plugin is downloaded, the plugin installation directory is checked for existence. If it exists, it's removed before the plugin installation. Because the plugin is not validated against the official list of plugins or sanitized, the check for existence and the removal of the plugin installation directory are prone to path traversal. This vulnerability allows an authenticated attacker to delete files from the server Uptime Kuma is running on. Depending on which files are deleted, Uptime Kuma or the whole system may become unavailable due to data loss.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
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 1.22.1 | 1.22.1 | Patch available | CNA |
| — | uptime-kuma (npm) | before 1.22.1 | 1.22.1 | Patch available | GHSA-vr8x-74pm-6vj7 |
- uptime-kuma Vendorlouislam Affected before 1.22.1 Fixed in 1.22.1 Patch available CNA
- uptime-kuma (npm) Vendor— Affected before 1.22.1 Fixed in 1.22.1 Patch available GHSA-vr8x-74pm-6vj7
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:uptime-kuma_project:uptime-kuma:*:*:*:*:*:*:*:* | before 1.22.1 | Vulnerable | Uptime-kuma Project |
- cpe:2.3:a:uptime-kuma_project:uptime-kuma:*:*:*:*:*:*:*:* Versions before 1.22.1 Vulnerable ·Uptime-kuma Project
Remediation
- Fix · CNA uptime-kuma (louislam) Fixed in 1.22.1
- Fix · GHSA-vr8x-74pm-6vj7 uptime-kuma (npm) Fixed in 1.22.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-36822
- 2026-10-03 Alias added: GHSA-vr8x-74pm-6vj7
References
Other 4
- https://github.com/louislam/uptime-kuma/blob/de74efb2e6601dcbcfed32cddefc4078a80fcb0b/server/plugins-manager.js#L75-L80
- https://github.com/louislam/uptime-kuma/releases/tag/1.22.1
- https://github.com/louislam/uptime-kuma/commit/a0736e04b2838aae198c2110db244eab6f87757b
- https://github.com/louislam/uptime-kuma
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-2023-36822 · CVE Program
- CVE-2023-36822 · NVD
- FIRST EPSS
- GHSA-vr8x-74pm-6vj7 · 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