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Moodle does not set the RISK_XSS bit for graders

Low severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Jan 26, 2024

Package

composer moodle/moodle (Composer)

Affected versions

< 2.6.11
>= 2.7.0, < 2.7.8
>= 2.8.0, < 2.8.6

Patched versions

2.6.11
2.7.8
2.8.6

Description

mod/quiz/db/access.php in Moodle through 2.5.9, 2.6.x before 2.6.11, 2.7.x before 2.7.8, and 2.8.x before 2.8.6 does not set the RISK_XSS bit for graders, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks via crafted gradebook feedback during manual quiz grading.

References

Published by the National Vulnerability Database Jun 1, 2015
Published to the GitHub Advisory Database May 13, 2022
Reviewed Jan 26, 2024
Last updated Jan 26, 2024

Severity

Low

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(45th percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2015-3174

GHSA ID

GHSA-6r7x-6q98-qcqp

Source code

Credits

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