The plugin register. Used on 300,000+ sites

PDF Embedder

4known security flaws found in PDF Embedder
since December 2019

Safe from 5.0.0

Version 5.0.0 or later fixes all of them. A site on an older version is open to them.

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When they were found.

Dangerous: a security flaw, December 2019Minor: Cross-site scripting, March 2024Advisory: Cross-site scripting, May 2024Minor: Information leak, May 202620192020202120222023202420252026

DangerousMajorMinorAdvisory

What they could let someone do.

What could happen

  • Cross-site scripting

    Someone could make your pages run their own script in visitors' browsers, to steal logins, show a fake payment form or send people to a scam site.

    How: The software puts text it was sent back onto a page without making it safe first, so a script hidden in a link, form or comment runs as if it were part of your site.

    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 (4)
  1. May 2026MinorInformation leakFixed in 5.0.0. Needs a login on the site (Contributor+).
  2. May 2024AdvisoryCross-site scriptingFixed in 4.8.0.
  3. March 2024MinorCross-site scriptingFixed in 4.7.1. Needs a login on the site.
  4. December 2019DangerousA security flaw No login needed.

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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