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Vulnerable Software

Vulnerability Details CVE-2026-102577

A flaw was found in Moodle. Incorrect handling of IPv4-mapped IPv6 addresses within the URL downloader's host-blocking logic allows an authenticated remote user to bypass blocked-host restrictions. By supplying a crafted URL, an attacker can induce the server to make requests to restricted destinations, leading to Server-Side Request Forgery (SSRF).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 16.5%
CVSS Severity
CVSS v3 Score 4.3
Products affected by CVE-2026-102577
  • Moodle » Moodle » Version: 5.0.0
    cpe:2.3:a:moodle:moodle:5.0.0
  • Moodle » Moodle » Version: 5.0.1
    cpe:2.3:a:moodle:moodle:5.0.1
  • Moodle » Moodle » Version: 5.0.2
    cpe:2.3:a:moodle:moodle:5.0.2
  • Moodle » Moodle » Version: 5.0.3
    cpe:2.3:a:moodle:moodle:5.0.3
  • Moodle » Moodle » Version: 5.0.4
    cpe:2.3:a:moodle:moodle:5.0.4
  • Moodle » Moodle » Version: 5.0.5
    cpe:2.3:a:moodle:moodle:5.0.5
  • Moodle » Moodle » Version: 5.0.6
    cpe:2.3:a:moodle:moodle:5.0.6
  • Moodle » Moodle » Version: 5.0.7
    cpe:2.3:a:moodle:moodle:5.0.7
  • Moodle » Moodle » Version: 5.1.0
    cpe:2.3:a:moodle:moodle:5.1.0
  • Moodle » Moodle » Version: 5.1.1
    cpe:2.3:a:moodle:moodle:5.1.1
  • Moodle » Moodle » Version: 5.1.2
    cpe:2.3:a:moodle:moodle:5.1.2
  • Moodle » Moodle » Version: 5.1.3
    cpe:2.3:a:moodle:moodle:5.1.3
  • Moodle » Moodle » Version: 5.1.4
    cpe:2.3:a:moodle:moodle:5.1.4
  • Moodle » Moodle » Version: 5.2.0
    cpe:2.3:a:moodle:moodle:5.2.0


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