CVE-2026-55417 | BDVDB-2026-346018 Detail

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.

Impact#

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Exploit#

History#

1. Version 12026-07-07Record published in the CVE List.
2. Version 22026-07-08Most recent update recorded in the CVE List.