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Vulnerable Software

Vulnerability Details CVE-2021-20185

It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 64.2%
CVSS Severity
CVSS v3 Score 5.3
CVSS v2 Score 5.0
Products affected by CVE-2021-20185
  • Moodle » Moodle » Version: 3.10.0
    cpe:2.3:a:moodle:moodle:3.10.0
  • Moodle » Moodle » Version: 3.5.0
    cpe:2.3:a:moodle:moodle:3.5.0
  • Moodle » Moodle » Version: 3.5.1
    cpe:2.3:a:moodle:moodle:3.5.1
  • Moodle » Moodle » Version: 3.5.10
    cpe:2.3:a:moodle:moodle:3.5.10
  • Moodle » Moodle » Version: 3.5.11
    cpe:2.3:a:moodle:moodle:3.5.11
  • Moodle » Moodle » Version: 3.5.12
    cpe:2.3:a:moodle:moodle:3.5.12
  • Moodle » Moodle » Version: 3.5.13
    cpe:2.3:a:moodle:moodle:3.5.13
  • Moodle » Moodle » Version: 3.5.14
    cpe:2.3:a:moodle:moodle:3.5.14
  • Moodle » Moodle » Version: 3.5.15
    cpe:2.3:a:moodle:moodle:3.5.15
  • Moodle » Moodle » Version: 3.5.2
    cpe:2.3:a:moodle:moodle:3.5.2
  • Moodle » Moodle » Version: 3.5.3
    cpe:2.3:a:moodle:moodle:3.5.3
  • Moodle » Moodle » Version: 3.5.4
    cpe:2.3:a:moodle:moodle:3.5.4
  • Moodle » Moodle » Version: 3.5.5
    cpe:2.3:a:moodle:moodle:3.5.5
  • Moodle » Moodle » Version: 3.5.6
    cpe:2.3:a:moodle:moodle:3.5.6
  • Moodle » Moodle » Version: 3.5.7
    cpe:2.3:a:moodle:moodle:3.5.7
  • Moodle » Moodle » Version: 3.5.8
    cpe:2.3:a:moodle:moodle:3.5.8
  • Moodle » Moodle » Version: 3.5.9
    cpe:2.3:a:moodle:moodle:3.5.9
  • Moodle » Moodle » Version: 3.8.0
    cpe:2.3:a:moodle:moodle:3.8.0
  • Moodle » Moodle » Version: 3.8.1
    cpe:2.3:a:moodle:moodle:3.8.1
  • Moodle » Moodle » Version: 3.8.2
    cpe:2.3:a:moodle:moodle:3.8.2
  • Moodle » Moodle » Version: 3.8.3
    cpe:2.3:a:moodle:moodle:3.8.3
  • Moodle » Moodle » Version: 3.8.4
    cpe:2.3:a:moodle:moodle:3.8.4
  • Moodle » Moodle » Version: 3.8.5
    cpe:2.3:a:moodle:moodle:3.8.5
  • Moodle » Moodle » Version: 3.8.6
    cpe:2.3:a:moodle:moodle:3.8.6
  • Moodle » Moodle » Version: 3.9.0
    cpe:2.3:a:moodle:moodle:3.9.0
  • Moodle » Moodle » Version: 3.9.1
    cpe:2.3:a:moodle:moodle:3.9.1
  • Moodle » Moodle » Version: 3.9.2
    cpe:2.3:a:moodle:moodle:3.9.2
  • Moodle » Moodle » Version: 3.9.3
    cpe:2.3:a:moodle:moodle:3.9.3


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