What is CVE-2023-6488?

CVE-2023-6488 is a medium-severity vulnerability in Getshortcodes Shortcodes Ultimate, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-12-19.

How severe is CVE-2023-6488?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2023-6488 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Getshortcodes Shortcodes Ultimate

CVE-2023-6488

The WP Shortcodes Plugin — Shortcodes Ultimate plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'su_button', 'su_members', and 'su_tabs' shortcodes in all versions up to, and including, 7.0.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-12-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (38.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Getshortcodes Shortcodes Ultimate
Gn Themes Wp Shortcodes Plugin — Ultimate — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.wordfence.com/threat-intel/vulnerabilities/id/50a89ad1-a3d0-49e3-8d2e-4cb81… (Third Party Advisory)
plugins.trac.wordpress.org/browser/shortcodes-ultimate/trunk/includes/shortcode… (Patch)
plugins.trac.wordpress.org/changeset (Patch)

Frequently asked questions

What is CVE-2023-6488?: CVE-2023-6488 is a medium-severity vulnerability in Getshortcodes Shortcodes Ultimate, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-12-19.
How severe is CVE-2023-6488?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2023-6488 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.