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CleanTalk Anti-Spam

22known security flaws found in CleanTalk Anti-Spam
since August 2015

Safe from 6.90

Version 6.90 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, August 2015Advisory: Cross-site scripting, August 2015Minor: Cross-site scripting, November 2019Major: Database injection, November 2020Advisory: Database injection, November 2020Major: Database injection, March 2021Minor: Cross-site scripting, March 2022Minor: Cross-site scripting, March 2022Major: Database injection, October 2022Major: Missing checks, June 2023Minor: Forged requests, December 2023Minor: Forged requests, December 2023Dangerous: Missing checks, November 2024Major: Running code, November 2024Dangerous: Running code, February 2026Advisory: Cross-site scripting, June 2026Major: Cross-site scripting, June 2026Major: Cross-site scripting, July 2026Minor: a security flaw, September 2026Minor: Cross-site scripting, September 2026Major: Cross-site scripting, October 2026201520172019202120232025

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 (22)
  1. October 2026MajorCross-site scriptingFixed in 6.90. No login needed.
  2. September 2026MinorCross-site scriptingFixed in 6.89. No login needed.
  3. September 2026MinorA security flawFixed in 6.87. No login needed.
  4. July 2026MajorCross-site scriptingFixed in 6.87. No login needed.
  5. June 2026MajorCross-site scriptingFixed in 6.83. No login needed.
  6. June 2026AdvisoryCross-site scriptingFixed in 6.79.
  7. February 2026DangerousRunning codeFixed in 6.72. No login needed.
  8. November 2024DangerousMissing checksFixed in 6.44. No login needed.
  9. November 2024MajorRunning codeFixed in 6.45. No login needed.
  10. December 2023MinorForged requestsFixed in 6.21. No login needed.
  11. December 2023MinorForged requestsFixed in 6.21. No login needed.
  12. June 2023MajorMissing checksFixed in 6.11. Needs a login on the site.
  13. October 2022MajorDatabase injectionFixed in 5.185.1. Needs a login on the site.
  14. March 2022MinorCross-site scriptingFixed in 5.174.1. No login needed.
  15. March 2022MinorCross-site scriptingFixed in 5.174.1. No login needed.
  16. March 2021MajorDatabase injectionFixed in 5.153.4. No login needed.
  17. November 2020MajorDatabase injectionFixed in 5.149. Needs a login on the site.
  18. November 2020AdvisoryDatabase injectionFixed in 5.149.
  19. November 2019MinorCross-site scriptingFixed in 5.127.4. No login needed.
  20. August 2015AdvisoryA security flawFixed in 5.22.
  21. August 2015AdvisoryCross-site scriptingFixed in 5.22.
  22. Date not knownAdvisoryCross-site scriptingFixed in 5.22. 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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