SB2021102012 - Stored cross-site scripting in LearnPress – WordPress LMS Plugin

Description

This security bulletin contains information about 1 security vulnerability.

1) Stored cross-site scripting (CVE-ID: CVE-2021-39349)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "$custom_profile" parameter in the ~/inc/admin/views/backend-user-profile.php file. A remote authenticated attacker can inject 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.

Remediation

Install update from vendor's website.

References

• https://github.com/BigTiger2020/word-press/blob/main/Author%20Bio%20Box.md
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39349
• https://plugins.trac.wordpress.org/changeset/2613798/author-bio-box/tags/3.3.2/includes/admin/class-author-bio-box-admin.php