Local file disclosure via permissive creation modes
Published Jun 26, 2025 · Updated Jun 26, 2025
Incorrect default permissions in File Browser before 2.33.7 allow local users to read managed files and the authentication database. File creation uses permissive modes, while the Bolt database was opened without a restrictive mode option, leaving other-user read bits under a standard 022 umask. Exploitation requires a local account or co-resident process on an unhardened Linux host and exposes file contents and stored password hashes.
Summary
What happened
Incorrect default permissions in File Browser before 2.33.7 allow local users to read managed files and the authentication database. File creation uses permissive modes, while the Bolt database was opened without a restrictive mode option, leaving other-user read bits under a standard 022 umask. Exploitation requires a local account or co-resident process on an unhardened Linux host and exposes file contents and stored password hashes.
The record
- CVE
- CVE-2025-52900
- Published
- Jun 26, 2025
- Updated
- Jun 26, 2025
- Vendor
- File Browser
- Product
- File Browser
- Classifications
- CWE-276, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 26, 2025CVE publishedPublication date reported by the CVE source.
- Jun 26, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.33.7
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Upstream Linux permission proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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