CVE-2025-3643 json
Moodle: reflected xss risk in policy tool
published 2025-04-25 18 mo ago modified 2026-09-08 2 mo ago also BIT-moodle-2025-3643 , EUVD-2025-12518 , GHSA-hxgg-4qww-85ph
- cvss
- 5.4
- 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 27%
- public exploits
- 0
- none known
Summary
A flaw was found in Moodle. The return URL in the policy tool required additional sanitizing to prevent a reflected Cross-site scripting (XSS) risk.
Patch / fix
- packagist moodle/moodle 4.1.18, 4.3.12, 4.4.8, 4.5.4
- bitnami moodle 4.1.18, 4.3.12, 4.4.8, 4.5.4
- moodle moodle 4.1.18, 4.3.12, 4.4.8, 4.5.4
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-2025-3643 updated cvss 5.4
moodle: Reflected XSS risk in policy tool
-
Red Hat All currently supported Red Hat productsnot 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
- 18 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| OSV | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | moodle/moodle | <4.1.18 >=4.3.0-beta, <4.3.12 >=4.4.0-beta, <4.4.8 >=4.5.0-beta, <4.5.4 |
4.1.18 4.3.12 4.4.8 4.5.4 |
| bitnami | moodle | <4.1.18 >=4.3.0, <4.3.12 >=4.4.0, <4.4.8 >=4.5.0, <4.5.4 |
4.1.18 4.3.12 4.4.8 4.5.4 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/moodle/moodle/commit/ff9bbd6d9e7d6267ce85e6c9afbeb19581f2a85f
web
-
moodle.org
/mod/forum/discuss.php?d=467604
web, vendor-advisory, advisory
-
access.redhat.com
/security/cve/CVE-2025-3643
vdb-entry, web, third-party-advisory, advisory
-
bugzilla.redhat.com
/show_bug.cgi?id=2359742
issue-tracking, web, report
-
nvd.nist.gov
/vuln/detail/CVE-2025-3643
advisory, web
-
github.com
/moodle/moodle
package
Sources
- CVE List CVE-2025-3643
- GitHub Advisory GHSA-hxgg-4qww-85ph
- NVD CVE-2025-3643
- OSV BIT-moodle-2025-3643
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