What is CVE-2026-1099?

CVE-2026-1099 is a medium-severity vulnerability in Shazdeh Administrative Shortcodes, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-24.

How severe is CVE-2026-1099?

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

XSS in Shazdeh Administrative Shortcodes

CVE-2026-1099

The Administrative Shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'login' and 'logout' shortcode attributes in all versions up to, and including, 0.3.4 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 (14.2th 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

Shazdeh Administrative Shortcodes — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-1099?: CVE-2026-1099 is a medium-severity vulnerability in Shazdeh Administrative Shortcodes, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-24.
How severe is CVE-2026-1099?: Medium severity. CVSS v3 base score is 6.4 out of 10.