MainWP Child: known security problems
9 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 9 known security problems on this page. Each one has a fixed version. Updating to version 6.2.2 or newer covers every fixed problem listed here.
Based on public reports. Check the plugin’s changelog. Watchfox AI may be wrong.
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A stranger could in some setups, take over your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.2.1
- Fixed in
- 6.2.2
- What to do
- If your site has an affected version, update MainWP Child to version 6.2.2 or newer.
- Official ID
- CVE-2026-105436
- Report title
- MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites <= 6.2.1 - Unauthenticated PHP Object Injection
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 6.1.1
- Fixed in
- 6.1.2
- What to do
- If your site has an affected version, update MainWP Child to version 6.1.2 or newer.
- Official ID
- CVE-2026-27366
- Report title
- MainWP Child – Securely Connects to the MainWP Dashboard to Manage Multiple Sites <= 6.1.1 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
A stranger could take over your site as an admin
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 5.3.3
- Fixed in
- 5.3.4
- What to do
- If your site has an affected version, update MainWP Child to version 5.3.4 or newer.
- Official ID
- CVE-2024-10783
- Report title
- MainWP Child <= 5.3.3 - Missing Authorization to Unauthenticated Privilege Escalation
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 4.4.1.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.4.1.1
- Fixed in
- 4.4.1.2
- What to do
- If your site has an affected version, update MainWP Child to version 4.4.1.2 or newer.
- Official ID
- CVE-2023-3132
- Report title
- MainWP Child <= 4.4.1.1 - Information Disclosure via Back-Up Files
- First reported
- Sources
- Wordfence, seen
Someone could read or change the data in your site’s database
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 4.1.8
- Fixed in
- 4.1.8
- What to do
- If your site has an affected version, update MainWP Child to version 4.1.8 or newer.
- Official ID
- CVE-2021-24877
- Report title
- MainWP Child <= 4.1.7.1 - SQL Injection via orderby, order Parameters
- First reported
- Sources
- Wordfence, seen
Someone could take over your site as an admin (before 3.4.5)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 3.4.5
- Fixed in
- 3.4.5
- What to do
- If your site has an affected version, update MainWP Child to version 3.4.5 or newer.
- Report title
- MainWP Child < 3.4.5 - Authentication Bypass
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.0.27
- Fixed in
- 2.0.28
- What to do
- If your site has an affected version, update MainWP Child to version 2.0.28 or newer.
- Report title
- MainWP Child <= 2.0.27 - Multiple Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site (up to and including 2.0.22)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2.0.22
- Fixed in
- 2.0.23
- What to do
- If your site has an affected version, update MainWP Child to version 2.0.23 or newer.
- Report title
- MainWP Dashboard and MainWP Child <= 2.0.22 - Unspecified Vulnerability
- First reported
- Sources
- Wordfence, seen
Someone could take over your site as an admin (before 2.0.9.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2.0.9.2
- Fixed in
- 2.0.9.2
- What to do
- If your site has an affected version, update MainWP Child to version 2.0.9.2 or newer.
- Report title
- MainWP Child – Securely connects sites to the MainWP WordPress Manager Dashboard < 2.0.9.2 - Authentication Bypass
- First reported
- Sources
- Wordfence, seen
Where this comes from
We collect these reports from public security sources and rewrite them in plain words. Each problem shows its sources and the date we first saw it. This page never says whether your own site is affected: only a check of your site’s versions can tell.
Get an email when your site is affected.
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