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Fencer Vulns
medium 6.1

CVE-2024-38274 json

moodle: stored XSS via calendar's event title when deleting the event

published 2024-06-18 2 y ago modified 2026-09-08 2 mo ago also BIT-moodle-2024-38274 , EUVD-2024-2117 , GHSA-p5cg-6rfr-6mx8

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

Insufficient escaping of calendar event titles resulted in a stored XSS risk in the event deletion prompt.

Patch / fix

  • packagist moodle/moodle 4.1.11, 4.2.8, 4.3.5, 4.4.1
  • bitnami moodle 4.1.11, 4.2.8, 4.3.5, 4.4.1
  • moodle moodle 4.1.11, 4.2.8, 4.3.5

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-38274 updated

moodle: stored XSS via calendar's event title when deleting the event

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
OSV 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist moodle/moodle
>=4.4.0-beta, <4.4.1
>=4.3.0-beta, <4.3.5
>=4.2.0-beta, <4.2.8
<4.1.11
4.4.1
4.3.5
4.2.8
4.1.11
bitnami moodle
>=4.1.0, <4.1.11
>=4.2.0, <4.2.8
>=4.3.0, <4.3.5
>=4.4.0, <4.4.1
4.1.11
4.2.8
4.3.5
4.4.1

Affected products

  • Moodle Moodle

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.