PT-2021-3688 · Moodle+1 · Moodle+1

Paul Holden · Published 2021-07-13 · Updated 2025-03-07 · CVE-2021-36399

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Moodle (affected versions not specified)

Description The issue is related to a stored XSS risk in Moodle, where ID numbers displayed in the quiz override screens required additional sanitizing. This could allow a remote attacker to perform cross-site scripting attacks.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2021-2215

BDU:2021-03921

BIT-MOODLE-2021-36399

CVE-2021-36399

GHSA-79JP-M64F-PGRC

Affected Products

Alt Linux

Moodle

References · 16

• https://osv.dev/vulnerability/GHSA-79jp-m64f-pgrc · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-36399 · Security Note
• https://bdu.fstec.ru/vul/2021-03921 · Security Note
• https://moodle.org/mod/forum/discuss.php?d=424805 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-moodle-2021-36399 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-36399 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-36399 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-36399 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-36399 · Security Note
• https://github.com/moodle/moodle · Note
• https://t.me/cvenotify/45661 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021071911 · Note
• https://t.me/cibsecurity/59519 · Telegram Post
• https://redos.red-soft.ru/updatesec · Note
• https://t.me/cvenotify/113898 · Telegram Post