CVE-2021-21389
8.1 · HIGHOverview
CVE-2021-21389 is a high-severity vulnerability affecting buddypress buddypress. It was published on March 26, 2021 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
BuddyPress is an open source WordPress plugin to build a community site. In releases of BuddyPress from 5.0.0 before 7.2.1 it's possible for a non-privileged, regular user to obtain administrator rights by exploiting an issue in the REST API members endpoint. The vulnerability has been fixed in BuddyPress 7.2.1. Existing installations of the plugin should be updated to this version to mitigate the issue.
Remediation
Check the references section for vendor advisories and patches from buddypress. Update buddypress to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| buddypress | buddypress | >= 5.0.0, < 7.2.1 | Affected |
References
Frequently Asked Questions
What is CVE-2021-21389?
CVE-2021-21389 is a high-severity vulnerability affecting buddypress buddypress. It was published on March 26, 2021 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2021-21389?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-21389?
Check the references section for vendor advisories and patches from buddypress. Update buddypress to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-21389?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-21389 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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