The plugin register. Used on 1 million+ sites

Speed Optimizer

7known security flaws found in Speed Optimizer
since March 2019

Safe from 7.8.5

Version 7.8.5 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: Missing checks, March 2019Minor: Missing checks, April 2024Minor: Cross-site scripting, April 2024Advisory: Cross-site scripting, April 2026Advisory: Missing checks, August 2026Advisory: Cross-site scripting, October 202620192020202120222023202420252026

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
  • 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 (7)
  1. October 2026AdvisoryCross-site scriptingFixed in 7.8.5.
  2. August 2026AdvisoryMissing checksFixed in 7.8.5.
  3. April 2026AdvisoryCross-site scriptingFixed in 7.7.9.
  4. April 2024MinorMissing checksFixed in 7.5.0. No login needed.
  5. April 2024MinorCross-site scriptingFixed in 7.8.1. Needs a login on the site (Contributor+).
  6. March 2019DangerousMissing checksFixed in 5.0.13. No login needed.
  7. Date not knownAdvisoryA security flawFixed in 5.0.13. 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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