Notification Deletion Flaw in ProfileGrid Plugin by WordPress
CVE-2026-16291

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Profilegrid
Vendor
CVE Published:
2 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16291?

The ProfileGrid plugin for WordPress, prior to version 5.9.9.8, contains an improper authorization vulnerability that enables authenticated users, such as Subscribers, to delete notifications intended for other users. This occurs due to the lack of verification that a notification belongs to the requesting user, which allows for the enumeration of notification identifiers and unauthorized deletion actions.

Affected Version(s)

ProfileGrid 0 < 5.9.9.8

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-2026-16291 - Proof of Concept

References

https://wpscan.com/vulnerability/899c2e96-39a9-4e1c-879b-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Meher Sudhakar Abbireddi
WPScan
.