BuddyPress privilege escalation via REST API
CVE-2021-21389

8.1HIGH

Key Information:

Vendor

Wordpress
Status
Buddypress
Vendor
CVE Published:
26 March 2021

Badges

πŸ‘Ύ Exploit Exists🟑 Public PoC🟣 EPSS 93%

What is CVE-2021-21389?

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.

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Deploy the Patch

Affected Version(s)

BuddyPress >= 5.0.0, < 7.2.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-21389
Created by mynameSumin

References

https://github.com/buddypress/BuddyPress/security/advisor...
x_refsource_CONFIRM
https://buddypress.org/2021/03/buddypress-7-2-1-security-...
x_refsource_MISC
https://codex.buddypress.org/releases/version-7-2-1/
x_refsource_MISC

EPSS Score

93% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟑

    Public PoC available

  • πŸ‘Ύ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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