PT-2025-17918 · Moodle+2 · Moodle+2

Michael Hawkins · CVE-2025-3643 · Published 2025-04-22 · Updated 2026-01-26

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions Moodle (affected versions not specified)

Description A flaw was found in the policy tool of Moodle, where the return URL required additional sanitizing to prevent a reflected Cross-site scripting (XSS) risk.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2025-6924

ALT-PU-2025-7344

BDU:2025-05100

BIT-MOODLE-2025-3643

CVE-2025-3643

GHSA-HXGG-4QWW-85PH

Affected Products

Alt Linux

Moodle

Red Os

References · 21

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3643.json · Exploit
• https://cve.org/CVERecord?id=CVE-2025-3643 · Security Note
• https://osv.dev/vulnerability/BIT-moodle-2025-3643 · Vendor Advisory
• https://moodle.org/mod/forum/discuss.php?d=467604 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-3643 · Security Note
• https://osv.dev/vulnerability/GHSA-hxgg-4qww-85ph · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-3643 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-3643 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-05100 · Security Note
• https://osv.dev/vulnerability/CVE-2025-3643 · Vendor Advisory
• https://github.com/moodle/moodle · Note
• https://github.com/moodle/moodle/commit/ff9bbd6d9e7d6267ce85e6c9afbeb19581f2a85f · Note
• https://access.redhat.com/security/cve/CVE-2025-3643 · Note
• https://access.redhat.com/security/cve/cve-2025-3643 · Note