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GHSA-c3j6-33r4-89q3

Moodle Client side denial of service via personal message

Source: GitHub Advisory Database (reviewed) Moderate CVE-2021-20185

Packages

EcosystemPackageAffectedFixed in
Packagist moodle/moodle >= 3.5, < 3.5.16 3.5.16
Packagist moodle/moodle >= 3.8, < 3.8.7 3.8.7
Packagist moodle/moodle >= 3.9, < 3.9.4 3.9.4
Packagist moodle/moodle >= 3.10, < 3.10.1 3.10.1

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.