How severe is GHSA-m6j4-8r7p-wpp3?

GHSA-m6j4-8r7p-wpp3 has a CVSS score of 8.1/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-m6j4-8r7p-wpp3?

GHSA-m6j4-8r7p-wpp3 affects the following packages: buddypress/buddypress (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-m6j4-8r7p-wpp3?

Update buddypress/buddypress to version 7.2.1 or later. Run your dependency manager's update command and verify no transitive dependencies pin the vulnerable version. Use O3 Security's SCA scanner to confirm the fix is applied across your entire dependency tree.

Is GHSA-m6j4-8r7p-wpp3 actively exploited in the wild?

Yes. There are 2 known exploit references for GHSA-m6j4-8r7p-wpp3, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-m6j4-8r7p-wpp3?

GHSA-m6j4-8r7p-wpp3 has an EPSS (Exploit Prediction Scoring System) score of 93.3%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is GHSA-m6j4-8r7p-wpp3?

GHSA-m6j4-8r7p-wpp3 is classified as CWE-863 (CWE-863). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Is there exploit tooling available for GHSA-m6j4-8r7p-wpp3?

A Nuclei detection template exists for GHSA-m6j4-8r7p-wpp3, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was GHSA-m6j4-8r7p-wpp3 published, and has it been updated?

GHSA-m6j4-8r7p-wpp3 was published on October 6, 2021 and was last updated on March 13, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

GHSA-m6j4-8r7p-wpp3

HIGH

BuddyPress privilege escalation via REST API

Also known asCVE-2021-21389

Published

Oct 6, 2021

Updated

Mar 13, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

2 known

EPSS Exploitation Probability

via FIRST.org ↗

93.3%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

1 pkg affected

🐘buddypress/buddypress

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Impact

It's possible for a non-privileged, regular user to obtain administrator rights by exploiting an issue in the BuddyPress REST API members endpoint.

Patches

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.

References

https://buddypress.org/2021/03/buddypress-7-2-1-security-release/

For more information

If you have any questions or comments about this advisory:

Open an issue in HackerOne

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`buddypress/buddypress`	≥ 5.0.0&&< 7.2.1	7.2.1

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

BuddyPress is an open source WordPress plugin to build a community site.…

github.comGithubMay 2021

Frequently Asked Questions

### Impact It's possible for a non-privileged, regular user to obtain administrator rights by exploiting an issue in the BuddyPress REST API members endpoint. ### Patches 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. ### References https://buddypress.org/2021/03/buddypress-7-2-1-security-release/ ### For more information If you have any questions or comments about this advisory: * Open an issue in [HackerOne](https://hackerone.com/wordpress)

O3 Security · Impact-Aware SCA

Is GHSA-m6j4-8r7p-wpp3 in your stack?

O3 detects GHSA-m6j4-8r7p-wpp3 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works