SB2020060307 - Multiple vulnerabilities in bbPress plugin for WordPress
Published: June 3, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Stored cross-site scripting (CVE-ID: CVE-2020-13487)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the forums list table. A remote user with Keymaster role can permanently 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.
2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-13693)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions when new user registration is enabled, which leads to security restrictions bypass and privilege escalation.
Remediation
Install update from vendor's website.
References
- https://bbpress.org/
- https://codex.bbpress.org/releases/
- https://wordpress.org/plugins/bbpress/#developers
- https://www.youtube.com/watch?v=3rXP8CGTe08
- http://packetstormsecurity.com/files/157885/WordPress-BBPress-2.5-Privilege-Escalation.html
- https://bbpress.org/blog/2020/05/bbpress-2-6-5-is-out/
- https://wpvulndb.com/vulnerabilities/10242/