What is CVE-2023-46858?

CVE-2023-46858 is a medium-severity vulnerability in Moodle, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-10-29.

How severe is CVE-2023-46858?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2023-46858 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Moodle

CVE-2023-46858

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."

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (46.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Moodle — versions 4.3.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

capture0x/My-CVE

References

cve@mitre.org (Broken Link)
cve@mitre.org (Product)
cve@mitre.org (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2023-46858?: CVE-2023-46858 is a medium-severity vulnerability in Moodle, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-10-29.
How severe is CVE-2023-46858?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2023-46858 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.