Cross-site scripting in LearnDash LearnDash

1) Cross-site scripting

EUVDB-ID: #VU30437

Risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-7108

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: Yes

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks via the ld-profile search field.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update to version 3.1.2.

Vulnerable software versions

LearnDash: 3.0 - 3.1.1.1

External links

http://packetstormsecurity.com/files/156275/LearnDash-WordPress-LMS-3.1.2-Cross-Site-Scripting.html
http://learndash.releasenotes.io/release/uCskc-version-312
http://wpvulndb.com/vulnerabilities/10026
http://www.getastra.com/blog/911/plugin-exploit/reflected-xss-vulnerability-found-in-learndash-lms-plugin/
http://www.jinsonvarghese.com/reflected-xss-in-learndash-wordpress-plugin/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.