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Fencer Vulns
medium 4.5

CVE-2025-52901 json

File Browser allows sensitive data to be transferred in URL

published 2025-06-30 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-19581 , GHSA-rmwh-g367-mj4x , GO-2025-3794

cvss
4.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to version 2.33.9, access tokens are used as GET parameters. The JSON Web Token (JWT) which is used as a session identifier will get leaked to anyone having access to the URLs accessed by the user. This will give an attacker full access to a user's account and, in consequence, to all sensitive files the user has access to. This issue has been patched in version 2.33.9.

Patch / fix

  • go github.com/filebrowser/filebrowser/v2 2.33.9
  • filebrowser filebrowser 2.33.9
  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250730T213748-1.1

opensuse advisories openSUSE-SU-2025:15405-1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
16 mo ago

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/filebrowser/filebrowser/security/advisories/GHSA-rmwh-g367-mj4x referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.5 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 4.5 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/filebrowser/filebrowser/v2
<2.33.9
2.33.9
go github.com/filebrowser/filebrowser
<=1.11.0
all versions
no fix listed

Affected products

  • filebrowser filebrowser

Classification

Weakness
  • CWE-598 Use of HTTP Request With Sensitive Query String

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.