CVE-2024-45691

Name: CVE-2024-45691
Creator: NVD / NIST
Published: 2024-11-20T11:15:05.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2024-45691 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A flaw was found in Moodle. When restricting access to a lesson activity with a password, certain passwords could be bypassed or less secure due to a loose comparison in the password-checking logic. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

A flaw was found in Moodle. When restricting access to a lesson activity with a password, certain passwords could be bypassed or less secure due to a loose comparison in the password-checking logic. This issue only affected passwords set to "magic hash" values.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

0.40%

32.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Moodle	Moodle	< 4.1.13
Moodle	Moodle	>= 4.2.0, < 4.2.10
Moodle	Moodle	>= 4.3.0, < 4.3.7
Moodle	Moodle	>= 4.4.0, < 4.4.3

References

https://bugzilla.redhat.com/show_bug.cgi?id=2309940Issue Tracking
https://moodle.org/security/Vendor Advisory

Timeline

Published: Nov 20, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-45691?

How severe is CVE-2024-45691?

CVE-2024-45691 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2024-45691?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-45691?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST