Authorization Flaw in Wava Payment Plugin for WordPress
CVE-2026-87838

Currently unrated

Key Information:

Vendor

WordPress
Status
Wava Payment Plugin
Vendor
CVE Published:
21 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-87838?

The Wava Payment Plugin for WordPress versions prior to 0.3.10 is susceptible to an authorization bypass due to inadequate security measures on its public REST endpoints. This vulnerability enables unauthenticated attackers to overwrite the merchant account credentials, which could lead to unauthorized modifications. Attackers can exploit this flaw to circumvent the integration process, effectively placing the site owner’s payment settings at risk, including the capability to remove payment methods from the checkout process.

Affected Version(s)

Wava Payment Plugin 0.3.1 < 0.3.10

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-2026-87838 - Proof of Concept

References

https://wpscan.com/vulnerability/96f247d7-3007-4728-9cd7-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • đź‘ľ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pablo González Pérez
Francisco José Ramírez Vicente and Iñigo Sánchez Enciso
WPScan
.