Joomla High · CVSS 8 CVE-2026-63265 July 22, 2026

Joomla: CSRF (request forgery)

Joomla

CSRF (request forgery) in the Joomla component. Threat level: High (CVSS 8).

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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 8 out of 10. It is worth acting before the flaw is exploited.

What this flaw is

CSRF tricks a logged-in user into unknowingly performing an action (e.g. changing settings or creating an account) when they visit a crafted page.

Combined with an administrator account, it lets an attacker quietly change the site configuration or add their own access.

Score breakdown (CVSS vector)

What the CVSS 8 rating means in practice:

  • The attack can be carried out remotely, over the internet.
  • Requires an ordinary, low-privileged account.
  • Requires user action (e.g. clicking a link).
  • At risk: data confidentiality, integrity (data can be altered), site availability.

Weakness class: CWE-284, CWE-352.

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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