CVE-2025-3643 — MEDIUM (5.4)

Q: What is CVE-2025-3643?

CVE-2025-3643 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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.

Q: How severe is CVE-2025-3643?

CVE-2025-3643 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-3643?

Check the references section above for vendor advisories and patch information. Affected products include: Moodle Moodle.

Vulnerability Description

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.

CVSS Score

5.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Moodle	Moodle	< 4.1.18

Related Weaknesses (CWE)

CWE-79

References

https://access.redhat.com/security/cve/CVE-2025-3643Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2359742Issue Tracking
https://moodle.org/mod/forum/discuss.php?d=467604Vendor Advisory

FAQ

What is CVE-2025-3643?

CVE-2025-3643 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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.

How severe is CVE-2025-3643?

CVE-2025-3643 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-3643?

Check the references section above for vendor advisories and patch information. Affected products include: Moodle Moodle.