Shodan
Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-34576

Postiz is an AI social media scheduling tool. Prior to version 2.21.3, the POST /public/v1/upload-from-url endpoint accepts a user-supplied URL and fetches it server-side using axios.get() with no SSRF protections. The only validation is a file extension check (.png, .jpg, etc.) which is trivially bypassed by appending an image extension to any URL path. An authenticated API user can fetch internal network resources, cloud instance metadata, and other internal services, with the response data uploaded to storage and returned to the attacker. This issue has been patched in version 2.21.3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.5%
CVSS Severity
CVSS v3 Score 7.7
Products affected by CVE-2026-34576
  • Gitroom » Postiz » Version: 0.0.1
    cpe:2.3:a:gitroom:postiz:0.0.1
  • Gitroom » Postiz » Version: 0.1.0
    cpe:2.3:a:gitroom:postiz:0.1.0
  • Gitroom » Postiz » Version: 1.0.0
    cpe:2.3:a:gitroom:postiz:1.0.0
  • Gitroom » Postiz » Version: 1.1.0
    cpe:2.3:a:gitroom:postiz:1.1.0
  • Gitroom » Postiz » Version: 1.10.0
    cpe:2.3:a:gitroom:postiz:1.10.0
  • Gitroom » Postiz » Version: 1.10.1
    cpe:2.3:a:gitroom:postiz:1.10.1
  • Gitroom » Postiz » Version: 1.11.1
    cpe:2.3:a:gitroom:postiz:1.11.1
  • Gitroom » Postiz » Version: 1.11.2
    cpe:2.3:a:gitroom:postiz:1.11.2
  • Gitroom » Postiz » Version: 1.11.3
    cpe:2.3:a:gitroom:postiz:1.11.3
  • Gitroom » Postiz » Version: 1.11.4
    cpe:2.3:a:gitroom:postiz:1.11.4
  • Gitroom » Postiz » Version: 1.12.0
    cpe:2.3:a:gitroom:postiz:1.12.0
  • Gitroom » Postiz » Version: 1.12.1
    cpe:2.3:a:gitroom:postiz:1.12.1
  • Gitroom » Postiz » Version: 1.13.1
    cpe:2.3:a:gitroom:postiz:1.13.1
  • Gitroom » Postiz » Version: 1.14.1
    cpe:2.3:a:gitroom:postiz:1.14.1
  • Gitroom » Postiz » Version: 1.15.1
    cpe:2.3:a:gitroom:postiz:1.15.1
  • Gitroom » Postiz » Version: 1.15.2
    cpe:2.3:a:gitroom:postiz:1.15.2
  • Gitroom » Postiz » Version: 1.16.1
    cpe:2.3:a:gitroom:postiz:1.16.1
  • Gitroom » Postiz » Version: 1.17.1
    cpe:2.3:a:gitroom:postiz:1.17.1
  • Gitroom » Postiz » Version: 1.19.1
    cpe:2.3:a:gitroom:postiz:1.19.1
  • Gitroom » Postiz » Version: 1.2.0
    cpe:2.3:a:gitroom:postiz:1.2.0
  • Gitroom » Postiz » Version: 1.20.1
    cpe:2.3:a:gitroom:postiz:1.20.1
  • Gitroom » Postiz » Version: 1.21.1
    cpe:2.3:a:gitroom:postiz:1.21.1
  • Gitroom » Postiz » Version: 1.22.1
    cpe:2.3:a:gitroom:postiz:1.22.1
  • Gitroom » Postiz » Version: 1.23.1
    cpe:2.3:a:gitroom:postiz:1.23.1
  • Gitroom » Postiz » Version: 1.23.2
    cpe:2.3:a:gitroom:postiz:1.23.2
  • Gitroom » Postiz » Version: 1.24.1
    cpe:2.3:a:gitroom:postiz:1.24.1
  • Gitroom » Postiz » Version: 1.25.1
    cpe:2.3:a:gitroom:postiz:1.25.1
  • Gitroom » Postiz » Version: 1.26.1
    cpe:2.3:a:gitroom:postiz:1.26.1
  • Gitroom » Postiz » Version: 1.27.1
    cpe:2.3:a:gitroom:postiz:1.27.1
  • Gitroom » Postiz » Version: 1.27.2
    cpe:2.3:a:gitroom:postiz:1.27.2
  • Gitroom » Postiz » Version: 1.28.1
    cpe:2.3:a:gitroom:postiz:1.28.1
  • Gitroom » Postiz » Version: 1.29.1
    cpe:2.3:a:gitroom:postiz:1.29.1
  • Gitroom » Postiz » Version: 1.3.0
    cpe:2.3:a:gitroom:postiz:1.3.0
  • Gitroom » Postiz » Version: 1.30.1
    cpe:2.3:a:gitroom:postiz:1.30.1
  • Gitroom » Postiz » Version: 1.31.1
    cpe:2.3:a:gitroom:postiz:1.31.1
  • Gitroom » Postiz » Version: 1.32.1
    cpe:2.3:a:gitroom:postiz:1.32.1
  • Gitroom » Postiz » Version: 1.33.1
    cpe:2.3:a:gitroom:postiz:1.33.1
  • Gitroom » Postiz » Version: 1.33.2
    cpe:2.3:a:gitroom:postiz:1.33.2
  • Gitroom » Postiz » Version: 1.34.1
    cpe:2.3:a:gitroom:postiz:1.34.1
  • Gitroom » Postiz » Version: 1.35.1
    cpe:2.3:a:gitroom:postiz:1.35.1
  • Gitroom » Postiz » Version: 1.36.1
    cpe:2.3:a:gitroom:postiz:1.36.1
  • Gitroom » Postiz » Version: 1.37.1
    cpe:2.3:a:gitroom:postiz:1.37.1
  • Gitroom » Postiz » Version: 1.37.2
    cpe:2.3:a:gitroom:postiz:1.37.2
  • Gitroom » Postiz » Version: 1.37.3
    cpe:2.3:a:gitroom:postiz:1.37.3
  • Gitroom » Postiz » Version: 1.37.4
    cpe:2.3:a:gitroom:postiz:1.37.4
  • Gitroom » Postiz » Version: 1.38.1
    cpe:2.3:a:gitroom:postiz:1.38.1
  • Gitroom » Postiz » Version: 1.38.2
    cpe:2.3:a:gitroom:postiz:1.38.2
  • Gitroom » Postiz » Version: 1.39.0
    cpe:2.3:a:gitroom:postiz:1.39.0
  • Gitroom » Postiz » Version: 1.39.1
    cpe:2.3:a:gitroom:postiz:1.39.1
  • Gitroom » Postiz » Version: 1.39.2
    cpe:2.3:a:gitroom:postiz:1.39.2
  • Gitroom » Postiz » Version: 1.39.3
    cpe:2.3:a:gitroom:postiz:1.39.3
  • Gitroom » Postiz » Version: 1.4.0
    cpe:2.3:a:gitroom:postiz:1.4.0
  • Gitroom » Postiz » Version: 1.40.0
    cpe:2.3:a:gitroom:postiz:1.40.0
  • Gitroom » Postiz » Version: 1.40.1
    cpe:2.3:a:gitroom:postiz:1.40.1
  • Gitroom » Postiz » Version: 1.41.0
    cpe:2.3:a:gitroom:postiz:1.41.0
  • Gitroom » Postiz » Version: 1.41.1
    cpe:2.3:a:gitroom:postiz:1.41.1
  • Gitroom » Postiz » Version: 1.42.1
    cpe:2.3:a:gitroom:postiz:1.42.1
  • Gitroom » Postiz » Version: 1.43.0
    cpe:2.3:a:gitroom:postiz:1.43.0
  • Gitroom » Postiz » Version: 1.43.1
    cpe:2.3:a:gitroom:postiz:1.43.1
  • Gitroom » Postiz » Version: 1.43.2
    cpe:2.3:a:gitroom:postiz:1.43.2
  • Gitroom » Postiz » Version: 1.43.3
    cpe:2.3:a:gitroom:postiz:1.43.3
  • Gitroom » Postiz » Version: 1.43.4
    cpe:2.3:a:gitroom:postiz:1.43.4
  • Gitroom » Postiz » Version: 1.43.5
    cpe:2.3:a:gitroom:postiz:1.43.5
  • Gitroom » Postiz » Version: 1.44.1
    cpe:2.3:a:gitroom:postiz:1.44.1
  • Gitroom » Postiz » Version: 1.44.2
    cpe:2.3:a:gitroom:postiz:1.44.2
  • Gitroom » Postiz » Version: 1.45.1
    cpe:2.3:a:gitroom:postiz:1.45.1
  • Gitroom » Postiz » Version: 1.46.0
    cpe:2.3:a:gitroom:postiz:1.46.0
  • Gitroom » Postiz » Version: 1.47.0
    cpe:2.3:a:gitroom:postiz:1.47.0
  • Gitroom » Postiz » Version: 1.48.0
    cpe:2.3:a:gitroom:postiz:1.48.0
  • Gitroom » Postiz » Version: 1.48.1
    cpe:2.3:a:gitroom:postiz:1.48.1
  • Gitroom » Postiz » Version: 1.48.2
    cpe:2.3:a:gitroom:postiz:1.48.2
  • Gitroom » Postiz » Version: 1.48.3
    cpe:2.3:a:gitroom:postiz:1.48.3
  • Gitroom » Postiz » Version: 1.48.4
    cpe:2.3:a:gitroom:postiz:1.48.4
  • Gitroom » Postiz » Version: 1.49.0
    cpe:2.3:a:gitroom:postiz:1.49.0
  • Gitroom » Postiz » Version: 1.49.1
    cpe:2.3:a:gitroom:postiz:1.49.1
  • Gitroom » Postiz » Version: 1.5.0
    cpe:2.3:a:gitroom:postiz:1.5.0
  • Gitroom » Postiz » Version: 1.50.0
    cpe:2.3:a:gitroom:postiz:1.50.0
  • Gitroom » Postiz » Version: 1.51.0
    cpe:2.3:a:gitroom:postiz:1.51.0
  • Gitroom » Postiz » Version: 1.52.0
    cpe:2.3:a:gitroom:postiz:1.52.0
  • Gitroom » Postiz » Version: 1.52.1
    cpe:2.3:a:gitroom:postiz:1.52.1
  • Gitroom » Postiz » Version: 1.52.2
    cpe:2.3:a:gitroom:postiz:1.52.2
  • Gitroom » Postiz » Version: 1.53.0
    cpe:2.3:a:gitroom:postiz:1.53.0
  • Gitroom » Postiz » Version: 1.54.0
    cpe:2.3:a:gitroom:postiz:1.54.0
  • Gitroom » Postiz » Version: 1.54.1
    cpe:2.3:a:gitroom:postiz:1.54.1
  • Gitroom » Postiz » Version: 1.55.0
    cpe:2.3:a:gitroom:postiz:1.55.0
  • Gitroom » Postiz » Version: 1.55.1
    cpe:2.3:a:gitroom:postiz:1.55.1
  • Gitroom » Postiz » Version: 1.55.2
    cpe:2.3:a:gitroom:postiz:1.55.2
  • Gitroom » Postiz » Version: 1.55.3
    cpe:2.3:a:gitroom:postiz:1.55.3
  • Gitroom » Postiz » Version: 1.55.4
    cpe:2.3:a:gitroom:postiz:1.55.4
  • Gitroom » Postiz » Version: 1.55.5
    cpe:2.3:a:gitroom:postiz:1.55.5
  • Gitroom » Postiz » Version: 1.56.0
    cpe:2.3:a:gitroom:postiz:1.56.0
  • Gitroom » Postiz » Version: 1.57.0
    cpe:2.3:a:gitroom:postiz:1.57.0
  • Gitroom » Postiz » Version: 1.58.0
    cpe:2.3:a:gitroom:postiz:1.58.0
  • Gitroom » Postiz » Version: 1.59.0
    cpe:2.3:a:gitroom:postiz:1.59.0
  • Gitroom » Postiz » Version: 1.6.0
    cpe:2.3:a:gitroom:postiz:1.6.0
  • Gitroom » Postiz » Version: 1.6.1
    cpe:2.3:a:gitroom:postiz:1.6.1
  • Gitroom » Postiz » Version: 1.6.10
    cpe:2.3:a:gitroom:postiz:1.6.10
  • Gitroom » Postiz » Version: 1.6.11
    cpe:2.3:a:gitroom:postiz:1.6.11
  • Gitroom » Postiz » Version: 1.6.12
    cpe:2.3:a:gitroom:postiz:1.6.12
  • Gitroom » Postiz » Version: 1.6.2
    cpe:2.3:a:gitroom:postiz:1.6.2
  • Gitroom » Postiz » Version: 1.6.3
    cpe:2.3:a:gitroom:postiz:1.6.3
  • Gitroom » Postiz » Version: 1.6.4
    cpe:2.3:a:gitroom:postiz:1.6.4
  • Gitroom » Postiz » Version: 1.6.5
    cpe:2.3:a:gitroom:postiz:1.6.5
  • Gitroom » Postiz » Version: 1.6.6
    cpe:2.3:a:gitroom:postiz:1.6.6
  • Gitroom » Postiz » Version: 1.6.7
    cpe:2.3:a:gitroom:postiz:1.6.7
  • Gitroom » Postiz » Version: 1.6.8
    cpe:2.3:a:gitroom:postiz:1.6.8
  • Gitroom » Postiz » Version: 1.6.9
    cpe:2.3:a:gitroom:postiz:1.6.9
  • Gitroom » Postiz » Version: 1.60.0
    cpe:2.3:a:gitroom:postiz:1.60.0
  • Gitroom » Postiz » Version: 1.60.1
    cpe:2.3:a:gitroom:postiz:1.60.1
  • Gitroom » Postiz » Version: 1.61.0
    cpe:2.3:a:gitroom:postiz:1.61.0
  • Gitroom » Postiz » Version: 1.61.2
    cpe:2.3:a:gitroom:postiz:1.61.2
  • Gitroom » Postiz » Version: 1.61.3
    cpe:2.3:a:gitroom:postiz:1.61.3
  • Gitroom » Postiz » Version: 1.62.0
    cpe:2.3:a:gitroom:postiz:1.62.0
  • Gitroom » Postiz » Version: 1.62.1
    cpe:2.3:a:gitroom:postiz:1.62.1
  • Gitroom » Postiz » Version: 1.62.2
    cpe:2.3:a:gitroom:postiz:1.62.2
  • Gitroom » Postiz » Version: 1.62.3
    cpe:2.3:a:gitroom:postiz:1.62.3
  • Gitroom » Postiz » Version: 1.63.0
    cpe:2.3:a:gitroom:postiz:1.63.0
  • Gitroom » Postiz » Version: 1.64.0
    cpe:2.3:a:gitroom:postiz:1.64.0
  • Gitroom » Postiz » Version: 1.64.1
    cpe:2.3:a:gitroom:postiz:1.64.1
  • Gitroom » Postiz » Version: 1.65.0
    cpe:2.3:a:gitroom:postiz:1.65.0
  • Gitroom » Postiz » Version: 1.65.1
    cpe:2.3:a:gitroom:postiz:1.65.1
  • Gitroom » Postiz » Version: 1.65.2
    cpe:2.3:a:gitroom:postiz:1.65.2
  • Gitroom » Postiz » Version: 1.65.3
    cpe:2.3:a:gitroom:postiz:1.65.3
  • Gitroom » Postiz » Version: 1.65.4
    cpe:2.3:a:gitroom:postiz:1.65.4
  • Gitroom » Postiz » Version: 1.65.5
    cpe:2.3:a:gitroom:postiz:1.65.5
  • Gitroom » Postiz » Version: 1.65.6
    cpe:2.3:a:gitroom:postiz:1.65.6
  • Gitroom » Postiz » Version: 1.65.7
    cpe:2.3:a:gitroom:postiz:1.65.7
  • Gitroom » Postiz » Version: 1.7.12
    cpe:2.3:a:gitroom:postiz:1.7.12
  • Gitroom » Postiz » Version: 1.8.1
    cpe:2.3:a:gitroom:postiz:1.8.1
  • Gitroom » Postiz » Version: 1.9.0
    cpe:2.3:a:gitroom:postiz:1.9.0
  • Gitroom » Postiz » Version: 2.0.0
    cpe:2.3:a:gitroom:postiz:2.0.0
  • Gitroom » Postiz » Version: 2.0.1
    cpe:2.3:a:gitroom:postiz:2.0.1
  • Gitroom » Postiz » Version: 2.0.2
    cpe:2.3:a:gitroom:postiz:2.0.2
  • Gitroom » Postiz » Version: 2.0.3
    cpe:2.3:a:gitroom:postiz:2.0.3
  • Gitroom » Postiz » Version: 2.0.4
    cpe:2.3:a:gitroom:postiz:2.0.4
  • Gitroom » Postiz » Version: 2.0.5
    cpe:2.3:a:gitroom:postiz:2.0.5
  • Gitroom » Postiz » Version: 2.0.6
    cpe:2.3:a:gitroom:postiz:2.0.6
  • Gitroom » Postiz » Version: 2.0.7
    cpe:2.3:a:gitroom:postiz:2.0.7
  • Gitroom » Postiz » Version: 2.0.8
    cpe:2.3:a:gitroom:postiz:2.0.8
  • Gitroom » Postiz » Version: 2.1.0
    cpe:2.3:a:gitroom:postiz:2.1.0
  • Gitroom » Postiz » Version: 2.1.1
    cpe:2.3:a:gitroom:postiz:2.1.1
  • Gitroom » Postiz » Version: 2.1.2
    cpe:2.3:a:gitroom:postiz:2.1.2
  • Gitroom » Postiz » Version: 2.10.0
    cpe:2.3:a:gitroom:postiz:2.10.0
  • Gitroom » Postiz » Version: 2.10.1
    cpe:2.3:a:gitroom:postiz:2.10.1
  • Gitroom » Postiz » Version: 2.11.0
    cpe:2.3:a:gitroom:postiz:2.11.0
  • Gitroom » Postiz » Version: 2.11.1
    cpe:2.3:a:gitroom:postiz:2.11.1
  • Gitroom » Postiz » Version: 2.11.2
    cpe:2.3:a:gitroom:postiz:2.11.2
  • Gitroom » Postiz » Version: 2.11.3
    cpe:2.3:a:gitroom:postiz:2.11.3
  • Gitroom » Postiz » Version: 2.12.0
    cpe:2.3:a:gitroom:postiz:2.12.0
  • Gitroom » Postiz » Version: 2.12.1
    cpe:2.3:a:gitroom:postiz:2.12.1
  • Gitroom » Postiz » Version: 2.13.0
    cpe:2.3:a:gitroom:postiz:2.13.0
  • Gitroom » Postiz » Version: 2.14.0
    cpe:2.3:a:gitroom:postiz:2.14.0
  • Gitroom » Postiz » Version: 2.15.0
    cpe:2.3:a:gitroom:postiz:2.15.0
  • Gitroom » Postiz » Version: 2.15.1
    cpe:2.3:a:gitroom:postiz:2.15.1
  • Gitroom » Postiz » Version: 2.16.0
    cpe:2.3:a:gitroom:postiz:2.16.0
  • Gitroom » Postiz » Version: 2.17.0
    cpe:2.3:a:gitroom:postiz:2.17.0
  • Gitroom » Postiz » Version: 2.18.0
    cpe:2.3:a:gitroom:postiz:2.18.0
  • Gitroom » Postiz » Version: 2.19.0
    cpe:2.3:a:gitroom:postiz:2.19.0
  • Gitroom » Postiz » Version: 2.2.0
    cpe:2.3:a:gitroom:postiz:2.2.0
  • Gitroom » Postiz » Version: 2.2.1
    cpe:2.3:a:gitroom:postiz:2.2.1
  • Gitroom » Postiz » Version: 2.2.3
    cpe:2.3:a:gitroom:postiz:2.2.3
  • Gitroom » Postiz » Version: 2.2.4
    cpe:2.3:a:gitroom:postiz:2.2.4
  • Gitroom » Postiz » Version: 2.2.5
    cpe:2.3:a:gitroom:postiz:2.2.5
  • Gitroom » Postiz » Version: 2.20.0
    cpe:2.3:a:gitroom:postiz:2.20.0
  • Gitroom » Postiz » Version: 2.20.1
    cpe:2.3:a:gitroom:postiz:2.20.1
  • Gitroom » Postiz » Version: 2.20.2
    cpe:2.3:a:gitroom:postiz:2.20.2
  • Gitroom » Postiz » Version: 2.21.0
    cpe:2.3:a:gitroom:postiz:2.21.0
  • Gitroom » Postiz » Version: 2.21.1
    cpe:2.3:a:gitroom:postiz:2.21.1
  • Gitroom » Postiz » Version: 2.21.2
    cpe:2.3:a:gitroom:postiz:2.21.2
  • Gitroom » Postiz » Version: 2.3.0
    cpe:2.3:a:gitroom:postiz:2.3.0
  • Gitroom » Postiz » Version: 2.3.1
    cpe:2.3:a:gitroom:postiz:2.3.1
  • Gitroom » Postiz » Version: 2.4.0
    cpe:2.3:a:gitroom:postiz:2.4.0
  • Gitroom » Postiz » Version: 2.4.1
    cpe:2.3:a:gitroom:postiz:2.4.1
  • Gitroom » Postiz » Version: 2.4.2
    cpe:2.3:a:gitroom:postiz:2.4.2
  • Gitroom » Postiz » Version: 2.4.3
    cpe:2.3:a:gitroom:postiz:2.4.3
  • Gitroom » Postiz » Version: 2.5.0
    cpe:2.3:a:gitroom:postiz:2.5.0
  • Gitroom » Postiz » Version: 2.5.1
    cpe:2.3:a:gitroom:postiz:2.5.1
  • Gitroom » Postiz » Version: 2.5.2
    cpe:2.3:a:gitroom:postiz:2.5.2
  • Gitroom » Postiz » Version: 2.5.3
    cpe:2.3:a:gitroom:postiz:2.5.3
  • Gitroom » Postiz » Version: 2.5.4
    cpe:2.3:a:gitroom:postiz:2.5.4
  • Gitroom » Postiz » Version: 2.6.0
    cpe:2.3:a:gitroom:postiz:2.6.0
  • Gitroom » Postiz » Version: 2.6.1
    cpe:2.3:a:gitroom:postiz:2.6.1
  • Gitroom » Postiz » Version: 2.6.2
    cpe:2.3:a:gitroom:postiz:2.6.2
  • Gitroom » Postiz » Version: 2.6.3
    cpe:2.3:a:gitroom:postiz:2.6.3
  • Gitroom » Postiz » Version: 2.6.4
    cpe:2.3:a:gitroom:postiz:2.6.4
  • Gitroom » Postiz » Version: 2.7.0
    cpe:2.3:a:gitroom:postiz:2.7.0
  • Gitroom » Postiz » Version: 2.8.0
    cpe:2.3:a:gitroom:postiz:2.8.0
  • Gitroom » Postiz » Version: 2.8.1
    cpe:2.3:a:gitroom:postiz:2.8.1
  • Gitroom » Postiz » Version: 2.8.2
    cpe:2.3:a:gitroom:postiz:2.8.2
  • Gitroom » Postiz » Version: 2.8.3
    cpe:2.3:a:gitroom:postiz:2.8.3
  • Gitroom » Postiz » Version: 2.9.0
    cpe:2.3:a:gitroom:postiz:2.9.0


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