CVE-2022-35653

Name: CVE-2022-35653
Creator: NVD / NIST
Published: 2022-07-25T16:15:08.52+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 3.67%

Last modified Jun 17, 2026

CVE-2022-35653 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A reflected XSS issue was identified in the LTI module of Moodle. The vulnerability exists due to insufficient sanitization of user-supplied data in the LTI module. EPSS estimates a 3.67% chance of exploitation in the next 30 days.

Description

A reflected XSS issue was identified in the LTI module of Moodle. The vulnerability exists due to insufficient sanitization of user-supplied data in the LTI module. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website to steal potentially sensitive information, change appearance of the web page, can perform phishing and drive-by-download attacks. This vulnerability does not impact authenticated users.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

3.67%

88.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Moodle	Moodle	>= 3.9.0, < 3.9.15
Moodle	Moodle	>= 3.11.0, < 3.11.8
Moodle	Moodle	4.0.0
Moodle	Moodle	4.0.1
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36
Redhat	Enterprise Linux	8.0

References

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-72299Patch, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2106277Issue Tracking, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MOKYVRNFNAODP2XSMGJ5CRDUZCZKAR3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTKUSFPSYFINSQFSOHDQIDVE6FWBEU6V/
https://moodle.org/mod/forum/discuss.php?d=436460Patch, Vendor Advisory
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-72299Patch, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2106277Issue Tracking, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MOKYVRNFNAODP2XSMGJ5CRDUZCZKAR3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTKUSFPSYFINSQFSOHDQIDVE6FWBEU6V/
https://moodle.org/mod/forum/discuss.php?d=436460Patch, Vendor Advisory

Timeline

Published: Jul 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-35653?

How severe is CVE-2022-35653?

CVE-2022-35653 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 3.67% probability of exploitation in the next 30 days.

How do I fix CVE-2022-35653?

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-2022-35653?

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

Scan your code now

Source: NVD / NIST