CVE-2021-21389

BuddyPress privilege escalation via REST API

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 93.34% Top 5%
Vendor Advisory buddypress.org Vendor Advisory buddypress.org
Affected: buddypress BuddyPress
Published at:
Updated at:

References

Link Tags
https://github.com/buddypress/BuddyPress/security/advisories/GHSA-m6j4-8r7p-wpp3 third party advisory
https://buddypress.org/2021/03/buddypress-7-2-1-security-release/ release notes vendor advisory
https://codex.buddypress.org/releases/version-7-2-1/ release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-21389?
CVE-2021-21389 has been scored as a high severity vulnerability.
How to fix CVE-2021-21389?
To fix CVE-2021-21389, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21389 being actively exploited in the wild?
It is possible that CVE-2021-21389 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~93% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21389?
CVE-2021-21389 affects buddypress BuddyPress.
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