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GHSA-36cm-vrqh-8p98medium

Moodle allows attackers to cause a denial of service

Impact

filter/urltolink/filter.php in Moodle through 2.5.9, 2.6.x before 2.6.9, 2.7.x before 2.7.6, and 2.8.x before 2.8.4 allows remote authenticated users to cause a denial of service (CPU consumption or partial outage) via a crafted string that is matched against an improper regular expression.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

moodle/moodle Packagist
Affected rangeRecorded fix
Earlier releases before 2.6.9Ecosystem versions2.6.9
From 2.7.0 before 2.7.6Ecosystem versions2.7.6
From 2.8.0 before 2.8.4Ecosystem versions2.8.4

Version evidence: OSV · GHSA-36cm-vrqh-8p98

View original version evidence (54 explicit versions)

Original source description

filter/urltolink/filter.php in Moodle through 2.5.9, 2.6.x before 2.6.9, 2.7.x before 2.7.6, and 2.8.x before 2.8.4 allows remote authenticated users to cause a denial of service (CPU consumption or partial outage) via a crafted string that is matched against an improper regular expression.

References