CVE-2026-6256 MEDIUM

CVE-2026-6256: Credits Shortcode <= 1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'link' Shortcode Attribute

Vendor Jashjacob
Product Credits Shortcode
Weakness CWE-79 · XSS
Published May 12, 2026
Last update May 12, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

The Credits Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'link' attribute of the 'credits' shortcode in all versions up to, and including, 1.2 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.

Explanation of Vulnerability in Simple Terms

02Summary

Credits Shortcode versions 1.2 and earlier contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts into shortcode content that execute in the browsers of other site visitors, potentially compromising their sessions or stealing sensitive data. The vulnerability affects multiple users across the site due to its changed scope.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they view affected shortcode content.

Potential impact on your site

04Site Impact

Visitors and other users may have their sessions hijacked or credentials stolen via injected scripts in shortcode output.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege authenticated account on the site.

Key dates

06Disclosure timeline

May 12, 2026 CVE published
May 12, 2026 Record updated