WP-BusinessDirectory: arbitrary file deletion
WP-BusinessDirectory
Arbitrary file deletion in the WP-BusinessDirectory component. Threat level: Critical (CVSS 9.1).
Who is affected
This vulnerability affects: WP-BusinessDirectory. If you use this component on your site, check the version and update it as soon as possible.
How dangerous
Rating: Critical, CVSS 9.1 out of 10. Critical flaws are often exploited en masse within hours of disclosure.
What this flaw is
The flaw allows deletion of files the attacker should not be able to touch. In WordPress, deleting the right file is sometimes used to bypass install-time protections.
It can lead to a site outage and, in the right conditions, to a takeover through a repeated, controlled reinstall.
Score breakdown (CVSS vector)
What the CVSS 9.1 rating means in practice:
- The attack can be carried out remotely, over the internet.
- No login or account required.
- Requires no action from the victim.
- At risk: integrity (data can be altered), site availability.
Weakness class: CWE-73.
What to do
- Update the vulnerable component (WP-BusinessDirectory) 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.
Does this flaw affect your site?
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