CVE-2026-115251 Duplicator 1.5.17 - Multisite Subsite Admin+ Network-Wide PHP Code Execution via One-Click Upgrade
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-115251?
CVE-2026-115251 is a high-severity vulnerability in Unknown Duplicator, published on 25 Oct 2026.
Official description
The Duplicator WordPress plugin before 5.0.0 does not restrict its one-click upgrade routine to users allowed to install Duplicator WordPress plugin before 5.0.0, and additionally exposes the routine without authentication, allowing an administrator of a multisite child site who is not a network administrator to install and run arbitrary PHP in the network-wide shared Duplicator WordPress plugin before 5.0.0 directory.
Weakness: CWE-269
Which versions are affected by CVE-2026-115251?
How do I fix CVE-2026-115251?
No fix has been published for CVE-2026-115251 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-115251 being exploited?
There is no known exploitation of CVE-2026-115251 in the wild and no public exploit code.
Sources
Also known as GHSA-j9mp-rgph-hchj.