CVE-2026-55417
Chevereto private profile setting leaks username on /json endpoint
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jul 7, 2026
- Updated
- Jul 8, 2026
- Reserved
- Jun 16, 2026
Description
Chevereto is a self-hosted media-sharing platform. Starting in version 3.7.5 and prior to version 4.5.4, when a user enables the private profile option, visiting their profile HTML route (`/username`) correctly returns 404. However, the `/json` AJAX listing endpoint does not apply the same check. An unauthenticated caller who knows the target's user ID can retrieve all of that user's publicly-scoped images, revealing the username (which should be private). This is patched in Chevereto v4.5.4. No known workarounds are available.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | GitHub_M |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
cheveretochevereto |
|
chevereto/cheveretochevereto |
|
rodber/chevereto-freechevereto |
|
References
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