The plugin register. Used on 7 million+ sites
LiteSpeed Cache
28known security flaws found in LiteSpeed Cache
since December 2020
Safe from 7.9.2
Version 7.9.2 or later fixes all of them. A site on an older version is open to them.
Or let us look for you
When they were found.
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 - Server side request forgery
Someone could make your server fetch addresses for them, reaching services that are meant to be private.
How: The software fetches an address it was sent without checking where it points.
Every known flaw, newest first (28)
- October 2026MinorInformation leakFixed in 7.9.1. No login needed.
- October 2026AdvisoryMissing checksFixed in 7.9.2.
- October 2026AdvisoryCross-site scriptingFixed in 7.9.2. No login needed.
- October 2026AdvisoryCross-site scriptingFixed in 7.9.2. No login needed.
- September 2026MinorCross-site scriptingFixed in 7.9.1. No login needed.
- August 2026MinorCross-site scriptingFixed in 7.8. Needs a login on the site (Author+).
- August 2026MajorCross-site scriptingFixed in 7.9. No login needed.
- August 2026MajorServer side request forgeryFixed in 7.9.1. No login needed.
- May 2026MajorCross-site scriptingFixed in 7.8. No login needed.
- October 2025MinorCross-site scriptingFixed in 7.6. No login needed.
- May 2025AdvisoryServer side request forgeryFixed in 7.1. Needs a login on the site (Editor+).
- December 2024MinorCross-site scriptingFixed in 6.5.3. Needs a login on the site.
- October 2024MajorMissing checksFixed in 6.5.2. No login needed.
- September 2024MajorReading filesFixed in 6.5.1. Needs a login on the site.
- September 2024MajorCross-site scriptingFixed in 6.5.1. No login needed.
- September 2024MinorCross-site scriptingFixed in 6.5.1. Needs a login on the site.
- September 2024MinorCross-site scriptingFixed in 6.5. Needs a login on the site.
- September 2024DangerousMissing checksFixed in 6.5.0.1. No login needed.
- August 2024DangerousMissing checksFixed in 6.4. No login needed.
- July 2024MinorForged requestsFixed in 6.3. No login needed.
- February 2024MajorMissing checksFixed in 5.7.0.1. No login needed.
- February 2024MajorCross-site scriptingFixed in 5.7.0.1. No login needed.
- October 2023MinorCross-site scriptingFixed in 5.7. Needs a login on the site (Contributor+).
- March 2023MinorForged requestsFixed in 5.3.1. No login needed.
- November 2021MinorCross-site scriptingFixed in 4.4.4. Needs a login on the site.
- November 2021MinorCross-site scriptingFixed in 4.4.4. No login needed.
- December 2020MinorCross-site scriptingFixed in 3.6.1. No login needed.
- December 2020AdvisoryCross-site scriptingFixed in 3.6.1.
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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