CVE-2026-40168: Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF....

Description

Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF. Although the application validates the initially supplied URL and blocks direct private/internal hosts, it does not re-validate the final destination after HTTP redirects. As a result, an attacker can supply a public HTTPS URL that passes validation and then redirects the server-side request to an internal resource.

Ghostwire Analysis — What This Means Practically

Exploitation Probability (EPSS): Low — 0.04% (12th percentile)

Low exploitation probability based on current threat landscape data. Standard patching timeline is appropriate.

High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
2 proof-of-concept exploits available on GitHub. Public exploit code lowers the barrier for both researchers and attackers.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

CVE-2026-40168: Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF....

Description

Ghostwire Analysis — What This Means Practically

Proof-of-Concept Exploits (2)

Security Coverage (1 articles)

References