The plugin register. Used on 700,000+ sites
MainWP Child
14known security flaws found in MainWP Child
since March 2015
Safe from 6.2.2
Version 6.2.2 or later fixes all of them. A site on an older version is open to them.
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When they were found.
DangerousMajorMinorAdvisory
What they could let someone do.
What could happen
- Missing checks
Someone could do things only an administrator should: change settings, see private data, or give themselves more rights.
How: Part of the software forgets to check who is asking before it does what was asked.
Read about it here - Running code
Someone could run their own code on the server and take the site over: add malware, send spam, steal data, or use it to attack others.
How: Part of the software treats something it was sent as instructions to follow, or keeps an uploaded file somewhere it can be run.
Read about it here - Information leak
It could give away information that should stay private, such as user details, file locations or settings, which makes other attacks easier.
How: The software shows, sends or logs more than it should.
Every known flaw, newest first (14)
- June 2026MajorMissing checksFixed in 6.1.2. No login needed.
- June 2026MajorRunning codeFixed in 6.2.2. No login needed.
- December 2024MajorMissing checksFixed in 5.3.4. No login needed.
- June 2023MajorInformation leakFixed in 4.4.1.2. No login needed.
- October 2021MajorDatabase injectionFixed in 4.1.8. Needs a login on the site.
- March 2018AdvisoryMissing checksFixed in 3.4.5.
- February 2018AdvisoryMissing checksFixed in 3.4.5.
- September 2015AdvisoryCross-site scriptingFixed in 2.0.28.
- August 2015AdvisoryA security flawFixed in 2.0.23.
- March 2015AdvisoryA security flawFixed in 2.0.9.2.
- March 2015AdvisoryMissing checksFixed in 2.0.9.2.
- Date not knownAdvisoryA security flawFixed in 2.0.23.
- Date not knownAdvisoryA security flawFixed in 3.4.5.
- Date not knownAdvisoryMissing checksFixed in 2.0.9.2.
From the public lists of known flaws, checked daily. A flaw is listed once it is made public, often after a fix is out.
Be told the day a new one is found.
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