CVE-2026-102586

EUVD-2026-89725
A flaw was found in Moodle. Insufficient sanitization of username input on the password reset page allows a remote attacker to conduct a cross-site scripting (XSS) attack. By convincing an unauthenticated user to access a specially crafted password reset link, an attacker could execute arbitrary script in the victim's browser.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 19.04%
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
moodle
bionic
needs-triage
jammy
dne
noble
dne
resolute
dne
xenial
needs-triage
Common Weakness Enumeration
References
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88335
https://access.redhat.com/security/cve/CVE-2026-102586
https://bugzilla.redhat.com/show_bug.cgi?id=2543641
https://moodle.org/mod/forum/discuss.php?d=482504