What is CVE-2025-12667?

CVE-2025-12667 is a medium-severity vulnerability in Paul1999 Github Gist Shortcode Plugin, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-11-11.

How severe is CVE-2025-12667?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Paul1999 Github Gist Shortcode Plugin

CVE-2025-12667

The GitHub Gist Shortcode Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' parameter of the 'gist' shortcode in all versions up to, and including, 0.2 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Paul1999 Github Gist Shortcode Plugin — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-12667?: CVE-2025-12667 is a medium-severity vulnerability in Paul1999 Github Gist Shortcode Plugin, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-11-11.
How severe is CVE-2025-12667?: Medium severity. CVSS v3 base score is 6.4 out of 10.