All errata/p9/ALT-PU-2021-1497-2
ALT-PU-2021-1497-2

Package update moodle in branch p9

Version3.10.2-alt1
Published2026-02-04
Max severityMEDIUM
Severity:

Closed issues (12)

CVE-2021-20280
MEDIUM5.4

Text-based feedback answers required additional sanitizing to prevent stored XSS and blind SSRF risks in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.

Published: 2021-03-15Modified: 2024-11-21
CVSS 2.0LOW 3.5
CVSS:2.0/AV:N/AC:M/Au:S/C:N/I:P/A:N
CVSS 3.xMEDIUM 5.4
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVE-2021-27131
MEDIUM5.4

Moodle 3.10.1 is vulnerable to persistent/stored cross-site scripting (XSS) due to the improper input sanitization on the "Additional HTML Section" via "Header and Footer" parameter in /admin/settings.php. This vulnerability is leading an attacker to steal admin and all user account cookies by storing the malicious XSS payload in Header and Footer. NOTE: this is disputed by the vendor because the "Additional HTML Section" for "Header and Footer" can only be supplied by an administrator, who is intentionally allowed to enter unsanitized input (e.g., site-specific JavaScript).

Published: 2023-05-16Modified: 2024-11-21
CVSS 3.xMEDIUM 5.4
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N