CVE-2022-50943

Moodle LMS 4.0 contains a cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting payloads through the search parameter. Attackers can inject JavaScript code via the search field in course/search.php to execute arbitrary scripts in users' browsers and steal session cookies.

CVSS v4.0

5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

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

EPSS

0.33% chance of exploitation in the next 30 days, 26th percentile

Published

2026-05-10

Updated

2026-07-15

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51115

References

• CVE Record
• NVD entry

Related

• CVE-2022-50942
• CVE-2022-50944
• CVE-2022-50941
• CVE-2022-50945
• CVE-2022-50940
• CVE-2022-50946