Steveas WP Live Chat Shoutbox <= 1.4.2 - Unauthenticated Stored XSS
CVE-2023-0899

6.1MEDIUM

Key Information:

Vendor
Wordpress
Status
Steveas WP Live Chat Shoutbox
Vendor
CVE Published:
24 April 2023

Badges

👾 Exploit Exists🟡 Public PoC

Summary

The Steveas WP Live Chat Shoutbox WordPress plugin through 1.4.2 does not sanitise and escape a parameter before outputting it back in the Shoutbox, leading to Stored Cross-Site Scripting which could be used against high privilege users such as admins.

Affected Version(s)

Steveas WP Live Chat Shoutbox 0 <= 1.4.2

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-2023-0899 - Proof of Concept

References

https://wpscan.com/vulnerability/e95f925f-118e-4fa1-8e8f-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Simone Onofri
Donato Onofri
WPScan
.