Arbitrary Code Execution Vulnerability in Brave WordPress Plugin
CVE-2026-81571

4.8MEDIUM

Key Information:

Vendor

WordPress
Status
Brave
Vendor
CVE Published:
2 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-81571?

The Brave WordPress plugin prior to version 0.8.8 contains a vulnerability that allows unauthenticated attackers to exploit URL parameters used to pre-fill form fields. This exploit enables malicious actors to execute arbitrary shortcodes server-side, posing a significant risk to the security and integrity of affected WordPress sites.

Affected Version(s)

Brave 0 < 0.8.8

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-2026-81571 - Proof of Concept

References

https://wpscan.com/vulnerability/049d0bfc-962b-4f5b-a089-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erwan LR (WPScan)
WPScan
.