PT-2026-43525 · Huankong · Hk Shortcode

Zakaria · Published 2026-05-27 · Updated 2026-05-27 · CVE-2026-8886

NVD

CVSS v3.1

6.4

Medium

Base vector

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

The hk shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title-plane' shortcode in versions up to, and including, 1.0. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes in the huankong post short title plane() function, where the 'title' attribute is concatenated directly into HTML output without any escaping. 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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-8886

Affected Products

Hk Shortcode

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-8886 · Security Note
• https://plugins.trac.wordpress.org/browser/hk-shortcode/tags/1.0/function/shortcode.php#L6 · Note
• https://plugins.trac.wordpress.org/browser/hk-shortcode/tags/1.0/function/shortcode.php#L8 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/ed1a7872-e268-460d-82f1-b047335a9977?source=cve · Note