Cross-Site Scripting Vulnerability in Moodle by Moodle
CVE-2019-3810

4.3MEDIUM

Key Information:

Vendor

[unknown]

Status
Moodle
Vendor
CVE Published:
25 March 2019

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-3810?

A security flaw exists in Moodle allowing cross-site scripting (XSS) via the /userpix/ page, which improperly escapes users' full names displayed during profile image hover. While this page isn't linked by default and has restricted access, it poses a risk, particularly if an attacker knows the URL. Users of affected Moodle versions should implement security measures to mitigate this vulnerability.

Affected Version(s)

moodle 3.6.2

moodle 3.5.4

moodle 3.4.7

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.

Moodle-CVE-2019-3810
Created by farisv

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3810
https://moodle.org/mod/forum/discuss.php?d=381230#p1536767
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=...

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.