Stored Cross-Site Scripting in User Submitted Posts Plugin for WordPress
CVE-2026-11570

4.2MEDIUM

Key Information:

Vendor

WordPress
Status
User Submitted Posts
Vendor
CVE Published:
1 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-11570?

The User Submitted Posts plugin for WordPress prior to version 20260608 is susceptible to a Stored Cross-Site Scripting (XSS) vulnerability. This occurs due to the failure to properly escape submitted values before they are displayed in an admin-configured template. An attacker can exploit this flaw to inject malicious scripts, which can be executed in the browsers of users visiting the affected site, especially when a non-default display option is enabled. This vulnerability poses a risk as it can be triggered by unauthenticated users, making it crucial for site administrators to update their plugins to address this security issue.

Affected Version(s)

User Submitted Posts 0 < 20260608

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-2026-11570 - Proof of Concept

References

https://wpscan.com/vulnerability/35c33c56-5b12-4be5-9d45-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
4.2
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

dangnosuy
WPScan
.