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Fencer Vulns
high 7.3

CVE-2025-67850 json

Moodle: moodle: cross-site scripting vulnerability via inadequate input filtering in formula editor

published 2026-02-03 9 mo ago modified 2026-09-10 1 mo ago also BIT-moodle-2025-67850 , EUVD-2025-206736 , GHSA-6mmv-f6c6-v6q8

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

A flaw was found in moodle. This vulnerability, known as Cross-Site Scripting (XSS), occurs due to insufficient checks on user-provided data in the formula editor's arithmetic expression fields. A remote attacker could inject malicious code into these fields. When other users view these expressions, the malicious code would execute in their web browsers, potentially compromising their data or leading to unauthorized actions.

Patch / fix

  • packagist moodle/moodle 4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1
  • bitnami moodle 4.1.22, 4.4.11, 4.5.8, 5.0.4, 5.1.1
  • moodle moodle 4.1.22, 4.4.11, 4.5.8, 5.0.4

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-2025-67850 updated cvss 7.3

moodle: moodle: Cross-Site Scripting vulnerability via inadequate input filtering in formula editor

  • 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
total
Assessed
9 mo ago

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
GitHub 3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
NVD 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 7.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
packagist moodle/moodle
<4.1.22
>=4.4.0-beta, <4.4.12
>=4.5.0-beta, <4.5.8
>=5.0.0-beta, <5.0.4
>=5.1.0-beta, <5.1.1
4.1.22
4.4.12
4.5.8
5.0.4
5.1.1
bitnami moodle
<4.1.22
>=4.4.0, <4.4.11
>=4.5.0, <4.5.8
>=5.0.0, <5.0.4
>=5.1.0, <5.1.1
4.1.22
4.4.11
4.5.8
5.0.4
5.1.1

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.