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CVE-2020-13424MediumCVE published 23 May 2020Added to mySites.guru 23 May 2020

XCloner Backup and Restore (com_xcloner-backupandrestore) below 3.5.4 - Authenticated Local File Disclosure

The XCloner component for Joomla before 3.5.4 allows authenticated local file disclosure, letting a logged-in user read files from the server filesystem. CVSS 6.5 (Medium). Update to 3.5.4 or later. Note that the Joomla build of XCloner is archived by the vendor, so sites still running it should plan a move to a maintained backup component.

Is my site affected?

Affected
XCloner Backup before 3.5.4
Fixed in
3.5.4
What to do
Update XCloner Backup to 3.5.4 or later.
Check whether your sites are affected

How severe CVE-2020-13424 is

The published CVE record has no CVSS score, so there is no vector to break down here. mySites.guru rates it Medium, and that is the rating your sites are checked against.

Timeline

  1. 23 May 2020CVE-2020-13424 record published by its CNA
  2. 23 May 2020mySites.guru check added for XCloner Backup (before 3.5.4)

Rule details

Other vulnerabilities in XCloner Backup

Updating for CVE-2020-13424 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

XCloner Backup

Latest safe version: 3.5.4

References

CVE-2020-13424 questions

Which versions are affected by CVE-2020-13424?
CVE-2020-13424 affects XCloner Backup before 3.5.4. The fix is in 3.5.4.
How do I fix CVE-2020-13424?
Update XCloner Backup to 3.5.4 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2020-13424?
The published CVE record has no CVSS score. mySites.guru rates it Medium.

Running an affected version on a site you manage?

A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.

This check is part of the mySites.guru Joomla vulnerability scanner, which reads every installed extension's version on each audit. Browse the rest of the Joomla vulnerability database.

Rules current as of 5 October 2026.