SB2023101851 - Multiple vulnerabilities in ActivityPub plugin for WordPress
Published: October 18, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Stored cross-site scripting (CVE-ID: CVE-2023-5057)
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. A remote user 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.
2) Authorization bypass through user-controlled key (CVE-ID: CVE-2023-3707)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the affected plugin does not ensure that post contents to be displayed are public and belong to the plugin. A remote user can retrieve the content of arbitrary post via an IDOR vector
3) Authorization bypass through user-controlled key (CVE-ID: CVE-2023-3706)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the affected plugin does not ensure that post titles to be displayed are public and belong to the plugin. A remote user can retrieve the title of arbitrary post via an IDOR vector.
Remediation
Install update from vendor's website.