Path Traversal in Crivion Laranode
CVE-2026-100520
Laranode versions before 1.2.1 contain a path traversal vulnerability in the POST /filemanager/upload-file endpoint that allows authenticated users to write arbitrary files outside their home directory. Attackers can supply directory traversal sequences in the path parameter to write PHP files into other tenants' web roots and execute code as those tenants.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (66.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.011 · change: +0.002
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/crivion/laranode (product)
- github.com/crivion/laranode/blob/v1.2/app/Actions/Filemanager/UploadFileAction… (technical-description)
- github.com/crivion/laranode/commit/5c2b18ae99caf77a6fb6cc5c0ab66562bd673424 (patch)
- github.com/crivion/laranode/pull/21 (issue-tracking, patch)
- Laranode v1.2.1 Release Notes (release-notes)
- GitHub Security Advisory (GHSA-34h2-2696-vfvr) (vendor-advisory)
- VulnCheck Advisory: Laranode before 1.2.1 Path Traversal in File Manager Upload Endpoint (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100520?
- CVE-2026-100520 is a high-severity vulnerability in Crivion Laranode, classified under Path Traversal. CVSS score: 8.8/10. Published 2026-09-26.
- How severe is CVE-2026-100520?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2026-100520 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.