CVE-2026-44542: gtsteffaniak filebrowser · Path Traversal
Affects gtsteffaniak filebrowserSource CVE Database V5
Not known to be exploited · CVSS 9.1 Critical : upgrade to 1.3.9-beta or 1.3.1-stable as a priority.
Data as of 10 Nov 2026, 23:24 UTC
Contested
Critical score, yet low EPSS after six months- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.3.9-beta, 1.3.1-stable
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 14 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade gtsteffaniak filebrowser to 1.3.9-beta or 1.3.1-stable.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| gtsteffaniakfilebrowser | Affected
| Fixed in
|
| gtsteffaniakfilebrowser | Affected
| Fixed in
|
GitHubgtsteffaniak/filebrowserpkg:github/gtsteffaniak/filebrowserOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
This vulnerability is fixed in FileBrowser Quantum versions 1.3.1-stable and 1.3.9-beta. Users should upgrade to these or later versions to remediate the issue. Patch status is not explicitly stated in a vendor advisory but the description confirms the fix in these versions. No additional mitigations are specified.
Description
CVE-2026-44542 is a critical path traversal vulnerability in gtsteffaniak's FileBrowser Quantum versions prior to 1.3.1-stable and 1.3.9-beta. The flaw allows an unauthenticated attacker with a valid public share hash and delete permissions to delete arbitrary files outside the intended shared directory by exploiting improper sanitization of attacker-controlled path input. This affects the public/api/resources and public/api/resources/bulk endpoints. The vulnerability is fixed in versions 1.3.1-stable and 1.