PT-2026-29853 · Postiz · Postiz
CVSS v3.1
8.6
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
Postiz versions prior to 2.21.3
Description
The GET
/public/stream endpoint in PublicController lacks proper validation and SSRF protections. It accepts a user-supplied url query parameter and proxies the full HTTP response back to the caller. The validation url.endsWith('mp4') is easily bypassed. This allows an unauthenticated attacker to read responses from internal services and cloud metadata endpoints.Recommendations
Update to version 2.21.3 or later.
Exploit
Fix
SSRF
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Weakness Enumeration
Related Identifiers
Affected Products
Postiz