Mendbird
Menu

The plugin register. Used on 600,000+ sites

Website Builder by SeedProd

11known security flaws found in Website Builder by SeedProd
since June 2020

Safe from 6.20.3

Version 6.20.3 or later fixes all of them. A site on an older version is open to them.

Or let us look for you

Free, with no sign up. About ten seconds, and nothing on your site is touched. See an example report

When they were found.

Minor: Cross-site scripting, June 2020Minor: Forged requests, September 2023Major: Missing checks, January 2024Minor: Forged requests, April 2024Minor: Cross-site scripting, September 2024Minor: Forged requests, November 2024Minor: Missing checks, May 2025Minor: Missing checks, December 2025Minor: Server side request forgery, March 2026Minor: Cross-site scripting, July 20262020202120222023202420252026

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
  • 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 (11)
  1. July 2026MinorCross-site scriptingFixed in 6.20.3. Needs a login on the site (Contributor+).
  2. March 2026MinorServer side request forgeryFixed in 6.19.9. Needs a login on the site (Editor+).
  3. December 2025MinorMissing checksFixed in 6.19.9. No login needed.
  4. May 2025MinorMissing checksFixed in 6.18.16. Needs a login on the site (Subscriber+).
  5. November 2024MinorForged requestsFixed in 6.18.10. No login needed.
  6. September 2024MinorCross-site scriptingFixed in 6.18.4. Needs a login on the site.
  7. April 2024MinorForged requestsFixed in 6.15.21. No login needed.
  8. January 2024MajorMissing checksFixed in 6.15.22. No login needed.
  9. September 2023MinorForged requestsFixed in 6.15.15.3. No login needed.
  10. June 2020MinorCross-site scriptingFixed in 5.1.2. Needs a login on the site.
  11. Date not knownAdvisoryMissing checksFixed in 6.15.22.

From the public lists of known flaws, checked daily. A flaw is listed once it is made public, often after a fix is out.

Be told the day a new one is found.

Mendbird checks your site every morning against the lists of known flaws, and emails you in plain English the day one hits something you run. Free for 14 days, then £9 a month.

Start my free trial