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Post Duplicator

12known security flaws found in Post Duplicator
since April 2016

Safe from 3.0.15

Version 3.0.15 or later fixes all of them. A site on an older version is open to them.

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When they were found.

Advisory: a security flaw, April 2016Minor: Cross-site scripting, April 2016Minor: Cross-site scripting, December 2021Minor: Missing checks, December 2023Minor: Missing checks, January 2025Minor: Missing checks, January 2025Advisory: a security flaw, February 2026Major: Running code, April 2026Advisory: Running code, June 2026Minor: Missing checks, August 2026Minor: Missing checks, August 2026201620182020202220242026

DangerousMajorMinorAdvisory

What they could let someone do.

What could happen

  • 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
  • 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
  • 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
Every known flaw, newest first (12)
  1. August 2026MinorMissing checksFixed in 3.0.12. Needs a login on the site (Contributor+).
  2. August 2026MinorMissing checksFixed in 3.0.12. Needs a login on the site (Contributor+).
  3. June 2026AdvisoryRunning codeFixed in 3.0.15. Needs a login on the site (Contributor+).
  4. April 2026MajorRunning codeFixed in 3.0.11. Needs a login on the site (Contributor+).
  5. February 2026AdvisoryA security flawFixed in 3.0.9. Needs a login on the site (Contributor+).
  6. January 2025MinorMissing checksFixed in 2.36. Needs a login on the site.
  7. January 2025MinorMissing checksFixed in 2.37. Needs a login on the site.
  8. December 2023MinorMissing checksFixed in 2.32. Needs a login on the site.
  9. December 2021MinorCross-site scriptingFixed in 2.27. Needs a login on the site.
  10. April 2016AdvisoryA security flawFixed in 2.17.
  11. April 2016MinorCross-site scriptingFixed in 2.17. No login needed.
  12. Date not knownAdvisoryCross-site scriptingFixed in 2.17.

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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