CVE-2026-15649

Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

6.4 Medium

The Powerkit – Supercharge your WordPress Site plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 3.1.0 due to insufficient input sanitization and output 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.

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

0.35%Up 0.1 points since Aug 1, 2026

What each source reports

CVE List Score used 6.4

Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Record: CVE-2026-15649
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-2026-51764 6.4

Record: EUVD-2026-51764
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-f956-42q9-x55r 6.4

The Powerkit – Supercharge your WordPress Site plugin for WordPress is vulnerable to Stored Cross...

Record: GHSA-f956-42q9-x55r
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-2026-15649
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

codesupplyco powerkit – supercharge your wordpress site

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-2026-15649 is a medium vulnerability (CVSS 6.4) in Codesupplyco Powerkit – Supercharge Your Wordpress Site, published August 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. No source names a fixed version.