PT-2026-56237 · Chevereto · Chevereto+2

Geo-Chen · Published 2026-07-07 · Updated 2026-07-07 · CVE-2026-55417

NVD

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-55417

Affected Products

Chevereto

Chevereto/Chevereto

Rodber/Chevereto-Free

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-55417 · Security Note
• https://github.com/chevereto/chevereto/security/advisories/GHSA-h4jp-mxfx-g8xp · Note
• https://chevereto.com/community/threads/chevereto-v4-5-4-announcement.16398/post-80153 · Note