PT-2021-3691 · Moodle+1 · Moodle+1

Paul Holden · Published 2021-07-13 · Updated 2025-03-07 · CVE-2021-36401

Positive Technologies (AI Summary)

CVSS v2.0

6.4

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

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

Description The issue is related to insufficient protection of the web page structure, allowing a remote attacker to perform cross-site scripting (XSS) attacks. Specifically, in Moodle, ID numbers exported in HTML data formats required additional sanitizing to prevent a local stored XSS risk.

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

ALT-PU-2022-1641

BDU:2021-03924

BIT-MOODLE-2021-36401

CVE-2021-36401

GHSA-G6H6-4FP6-W33W

Affected Products

Alt Linux

Moodle

References · 15

• https://osv.dev/vulnerability/UBUNTU-CVE-2021-36401 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-36401 · Security Note
• https://moodle.org/mod/forum/discuss.php?d=424807 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-g6h6-4fp6-w33w · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-03924 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-36401 · Security Note
• https://osv.dev/vulnerability/BIT-moodle-2021-36401 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-36401 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-36401 · Vendor Advisory
• https://github.com/moodle/moodle · Note
• https://securitylab.ru/vulnerability/522422.php · Note
• https://t.me/cvenotify/113884 · Telegram Post
• https://t.me/cvenotify/45659 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021071911 · Note
• https://redos.red-soft.ru/updatesec · Note