Cross-Site Scripting Vulnerability in Moodle LMS by Moodle
CVE-2022-50943

5.1MEDIUM

Key Information:

Vendor

Moodle
Status
Moodle Lms
Vendor
CVE Published:
10 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2022-50943?

Moodle LMS 4.0 is susceptible to a cross-site scripting vulnerability that enables unauthenticated attackers to inject harmful scripts through the search parameter. By exploiting this flaw in the course/search.php file, attackers can execute arbitrary JavaScript in the browsers of unsuspecting users, potentially leading to the theft of sensitive session cookies.

Affected Version(s)

Moodle LMS 4.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2022-50943 - Proof of Concept

References

https://www.exploit-db.com/exploits/51115
exploit
https://moodle.org/
product
https://git.in.moodle.com/moodle
product

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Saud Alenazi
.