The plugin register. Used on 1 million+ sites
Image Optimizer
3known security flaws found in Image Optimizer
since February 2026
Safe from 1.7.7
Version 1.7.7 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
- Reading files
Someone could read files on the server they should never see, such as the settings file holding the database password, or delete files the site needs.
How: The software takes a file name from a request and does not check that it stays inside its own folder.
Read about it here - 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 - 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 (3)
- September 2026AdvisoryInformation leakFixed in 1.7.7.
- July 2026MajorReading filesFixed in 1.7.5. Needs a login on the site (Author+).
- February 2026MinorMissing checksFixed in 1.7.2. Needs a login on the site.
From the public lists of known flaws, checked daily. A flaw is listed once it is made public, often after a fix is out.
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