SEPTEMBER 20, 2026
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Case File

CVE-2026-55417

MEDIUM · CVSS 6.9 EPSS 0.25% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-07 · Last synced 2026-08-06

CyberRota Analysis

AI-Generated

Chevereto versions 3.7.5 to 4.5.3 have a vulnerability that allows unauthenticated users to access publicly-scoped images of private profile users via the `/json` AJAX endpoint, despite the profile page returning a 404 error. This exposure can lead to unauthorized disclosure of user information, including usernames and image data. Organizations using affected versions should prioritize upgrading to v4.5.4 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55417
Severity
MEDIUM
CVSS
6.9
EPSS
0.25%

Original NVD 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.