CVE-2026-86826 BackWPup < 5.7.7 - Unauthenticated Sensitive Data Disclosure via Restore Working Directory on NGINX
Unauthenticated attackers can download sensitive backup archives containing credentials and site files if the web server does not honor .htaccess rules.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86826?
CVE-2026-86826 is a medium-severity vulnerability in Unknown BackWPup, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The BackWPup WordPress plugin before 5.7.7 does not properly restrict web access to the working directory it uses during backup restores, allowing unauthenticated attackers, on webservers that do not honour .htaccess rules such as NGINX, to download the full backup archive (database dump and site files, including credentials and secret keys) left behind by an interrupted restore.
Weakness: CWE-200
Which versions are affected by CVE-2026-86826?
How do I fix CVE-2026-86826?
No fix has been published for CVE-2026-86826 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-86826 being exploited?
There is no known exploitation of CVE-2026-86826 in the wild and no public exploit code.
Sources
Also known as GHSA-jprm-wgx9-37wq.