CVE-2026-8895CWE-79

kk blog card <= 1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Medium · published June 9, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
23.8
In the wild
Unconfirmed
What it is

The kk blog card plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'blog-card' shortcode in all versions up to, and including, 1.3. This is due to insufficient input sanitization and output escaping on the shortcode's 'href' and 'type' attributes, which are concatenated directly into HTML attribute contexts in the shortcode callback registered in kk-blog-card-shortcode.php. 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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00321 · 23.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-09T03:41Z
EPSS history
Timeline
  • 09 JUN 03:41Z
    kk blog card <= 1.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
    cvelistv5