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PoC Published for CVE-2026-8239: CVE-2026-8239

CVE-2026-8239

August 1, 2026 · GitHub · Severity: CRITICAL

Proof of Concept exploit published on GitHub: CVE-2026-8239. CVE-2026-8239 is an Insecure Direct Object Reference (IDOR) vulnerability affecting Concrete CMS 9.5.0 and earlier.

CVE-2026-8239 is an Insecure Direct Object Reference (IDOR) vulnerability affecting Concrete CMS 9.5.0 and earlier. Repository: https://github.com/aj2108/CVE-2026-8239 Stars: 0 Created: 2026-08-01T07:13:38Z

Key Takeaways

  • This critical-severity vulnerability affects the affected product and could lead to system compromise.
  • Organizations using affected products should review the published PoC and apply vendor patches immediately.
  • Proof of Concept exploit published on GitHub: CVE-2026-8239. CVE-2026-8239 is an Insecure Direct Object Reference (IDOR) vulnerability affecting Concr. Proof-of-concept code lowers the barrier for exploitation — attackers and security tools alike can leverage it.
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