CVE-2023-5550

Name: CVE-2023-5550
Creator: NVD / NIST
Published: 2023-11-09T20:15:10.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.37%

Last modified Jun 17, 2026

CVE-2023-5550 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user who also has direct access to the web server outside of the Moodle webroot could utilise a local file include to achieve remote code execution.. EPSS estimates a 1.37% chance of exploitation in the next 30 days.

Description

In a shared hosting environment that has been misconfigured to allow access to other users' content, a Moodle user who also has direct access to the web server outside of the Moodle webroot could utilise a local file include to achieve remote code execution.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.37%

68.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Moodle	Moodle	< 3.9.24
Moodle	Moodle	>= 3.11.0, < 3.11.17
Moodle	Moodle	>= 4.0.0, < 4.0.11
Moodle	Moodle	>= 4.1.0, < 4.1.6
Moodle	Moodle	>= 4.2.0, < 4.2.3
Fedoraproject	Extra Packages For Enterprise Linux	7.0
Fedoraproject	Fedora	38

References

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-72249Patch
https://bugzilla.redhat.com/show_bug.cgi?id=2243452Issue Tracking, Third Party Advisory
https://moodle.org/mod/forum/discuss.php?d=451591Patch, Vendor Advisory
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-72249Patch
https://bugzilla.redhat.com/show_bug.cgi?id=2243452Issue Tracking, Third Party Advisory
https://moodle.org/mod/forum/discuss.php?d=451591Patch, Vendor Advisory

Timeline

Published: Nov 9, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5550?

How severe is CVE-2023-5550?

CVE-2023-5550 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.37% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5550?

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-2023-5550?

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

Scan your code now

Source: NVD / NIST