CVE-2023-46858

Name: CVE-2023-46858
Creator: NVD / NIST
Published: 2023-10-29T01:15:41.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2023-46858 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Moodle 4.3 allows /grade/report/grader/index.php?searchvalue= reflected XSS when logged in as a teacher. NOTE: the Moodle Security FAQ link states "Some forms of rich content [are] used by teachers to enhance their courses ... EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

Moodle 4.3 allows /grade/report/grader/index.php?searchvalue= reflected XSS when logged in as a teacher. NOTE: the Moodle Security FAQ link states "Some forms of rich content [are] used by teachers to enhance their courses ... admins and teachers can post XSS-capable content, but students can not."

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.62%

45.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Moodle	Moodle	4.3.0

References

https://docs.moodle.org/403/en/Security_FAQ#I_have_discovered_Cross_Site_Scripting_.28XSS.29_is_possible_with_MoodleProduct
https://gist.github.com/Abid-Ahmad/12d2b4878eb731e8871b96b7d55125cdBroken Link
https://packetstormsecurity.com/files/175277/Moodle-4.3-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://docs.moodle.org/403/en/Security_FAQ#I_have_discovered_Cross_Site_Scripting_.28XSS.29_is_possible_with_MoodleProduct
https://gist.github.com/Abid-Ahmad/12d2b4878eb731e8871b96b7d55125cdBroken Link
https://packetstormsecurity.com/files/175277/Moodle-4.3-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry

Timeline

Published: Oct 29, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-46858?

How severe is CVE-2023-46858?

CVE-2023-46858 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2023-46858?

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-2023-46858?

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

Scan your code now

Source: NVD / NIST