CVE-2024-12457

Chat Support for Viber – Chat Bubble and Chat Button for Gutenberg, Elementor and Shortcode <= 1.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

6.4 Medium

The Chat Support for Viber – Chat Bubble and Chat Button for Gutenberg, Elementor and Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vchat' shortcode in all versions up to, and including, 1.7.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.32%Up 0.3 points since Jan 7, 2025

What each source reports

CVE List Score used 6.4

Chat Support for Viber – Chat Bubble and Chat Button for Gutenberg, Elementor and Shortcode <= 1.7.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

Record: CVE-2024-12457
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2024-50871 6.4

Record: EUVD-2024-50871
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-fx7f-p833-4c8p 6.4

The Chat Support for Viber – Chat Bubble and Chat Button for Gutenberg, Elementor and Shortcode...

The Chat Support for Viber – Chat Bubble and Chat Button for Gutenberg, Elementor and Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vchat' shortcode in all versions up to, and including, 1.7.2 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Record: GHSA-fx7f-p833-4c8p
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 6.4

Record: CVE-2024-12457
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-12457 is a medium vulnerability (CVSS 6.4) in Faysal61 Chat Support For Viber – Chat Bubble And Chat Button For Gutenberg, Elementor And Shortcode, published January 7, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 25th percentile. No source names a fixed version.