CVE-2026-1890 Details.
LeadConnector < 3.0.22 - Unauthenticated Arbitrary Data Write
Atlas does not check this one. Needs requests that change data.
To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check.
About CVE-2026-1890. What It Means.
LeadConnector WordPress plugin < 3.0.22 contains a broken access control caused by missing authorization in a REST route, letting unauthenticated attackers overwrite existing data remotely, exploit requires no authentication.
Affected Product. What Is Hit.
- Vendor
- leadconnector
- Product
- LeadConnector
FAQ
Common Questions.
LeadConnector < 3.0.22 - Unauthenticated Arbitrary Data Write. LeadConnector WordPress plugin < 3.0.22 contains a broken access control caused by missing authorization in a REST route, letting unauthenticated attackers overwrite existing data remotely, exploit requires no authentication.
No. To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check. The facts about CVE-2026-1890 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-1890 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update LeadConnector to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-1890. Atlas does not run a check for it, so nothing here says whether a particular site is affected.