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EWWW Image Optimizer

18known security flaws found in EWWW Image Optimizer
since September 2014

Safe from 8.8.0

Version 8.8.0 or later fixes all of them. A site on an older version is open to them.

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When they were found.

Advisory: Cross-site scripting, September 2014Dangerous: Running code, June 2016Advisory: a security flaw, June 2016Minor: Forged requests, September 2020Advisory: Forged requests, September 2020Advisory: a security flaw, June 2023Advisory: Information leak, September 2023Minor: Information leak, November 2023Minor: Forged requests, April 2024Minor: Cross-site scripting, April 2024Major: Cross-site scripting, August 2026Advisory: Cross-site scripting, September 2026Minor: Cross-site scripting, September 2026Minor: Cross-site scripting, September 2026Advisory: Reading files, September 2026Advisory: Running code, September 20262014201620182020202220242026

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
  • 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
  • Forged requests

    Someone could get a signed in administrator to change something without knowing, such as adding a new admin or changing settings, just by visiting a page.

    How: The software does not check that a change came from its own pages, so another site can quietly send one through the administrator's browser.

    Read about it here
Every known flaw, newest first (18)
  1. September 2026MinorCross-site scriptingFixed in 8.8.0. No login needed.
  2. September 2026AdvisoryReading filesFixed in 8.8.0.
  3. September 2026AdvisoryRunning codeFixed in 8.8.0.
  4. September 2026MinorCross-site scriptingFixed in 8.8.0. Needs a login on the site (Contributor+).
  5. September 2026AdvisoryCross-site scriptingFixed in 8.7.7. Needs a login on the site (Author+).
  6. August 2026MajorCross-site scriptingFixed in 8.7.7. No login needed.
  7. April 2024MinorForged requestsFixed in 7.3.0. No login needed.
  8. April 2024MinorCross-site scriptingFixed in 8.7.4. Needs a login on the site (Contributor+).
  9. November 2023MinorInformation leakFixed in 7.2.1. No login needed.
  10. September 2023AdvisoryInformation leakFixed in 7.2.1.
  11. June 2023AdvisoryA security flawFixed in 5.9.
  12. September 2020AdvisoryForged requestsFixed in 5.8.2.
  13. September 2020MinorForged requestsFixed in 5.9. No login needed.
  14. June 2016AdvisoryA security flawFixed in 2.8.4.
  15. June 2016DangerousRunning codeFixed in 2.8.5. No login needed.
  16. September 2014AdvisoryCross-site scriptingFixed in 2.0.2.
  17. Date not knownAdvisoryA security flawFixed in 5.9.
  18. Date not knownAdvisoryInformation leakFixed in 7.2.1.

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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