HTML Injection Flaw in Responsive Blocks Plugin for WordPress
CVE-2026-97315

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
Responsive Blocks
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-97315?

The Responsive Blocks plugin for WordPress, prior to version 2.3.0, is vulnerable to an HTML injection issue. This flaw arises because the plugin fails to properly sanitize or escape user-submitted values in its Form block, which are then included in HTML notification emails sent to site administrators. As a result, this vulnerability permits unauthenticated users to inject arbitrary HTML code, potentially leading to phishing attacks and other security threats.

Affected Version(s)

Responsive Blocks 0 < 2.3.0

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-2026-97315 - Proof of Concept

References

https://wpscan.com/vulnerability/83713678-7efc-4cfc-ba24-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Amin Guliyev
WPScan
.