CVE-2026-40168
Last modified
CVE-2026-40168 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. Postiz is an AI social media scheduling tool. Prior to 2.21.5, the /api/public/stream endpoint is vulnerable to SSRF. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gitroom | Postiz | < 2.21.5 |
References
- https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.5Product, Release Notes
- https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6wwExploit, Mitigation, Vendor Advisory
- https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-34w8-5j2v-h6wwExploit, Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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