Joomla High · CVSS 7 CVE-2026-75115 August 21, 2026

Joomla: security vulnerability

Joomla

Security vulnerability in the Joomla component. Threat level: High (CVSS 7).

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Who is affected

This vulnerability affects: Joomla. If you use this component on your site, check the version and update it as soon as possible.

How dangerous

Rating: High, CVSS 7 out of 10. It is worth acting before the flaw is exploited.

What this flaw is

This is a security vulnerability in one of the site components. Full technical details are described in the source NVD entry, linked below.

Even seemingly lower-priority flaws are often chained into attacks, so it is not worth delaying the update of the vulnerable component.

Score breakdown (CVSS vector)

What the CVSS 7 rating means in practice:

  • The attack can be carried out remotely, over the internet.
  • Requires an account with elevated privileges.
  • Requires no action from the victim.

Weakness class: CWE-22.

What to do

  • Update the vulnerable component (Joomla) to the latest version.
  • If a patch is not out yet, temporarily disable the vulnerable element.
  • Check whether the site has already been attacked: unusual files, new administrator accounts, redirects.
  • Make a backup before you start making changes.
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