CVE-2019-9870

CRITICAL 9.8CVE-2019-9870 · Published 21/03/2019 · updated 17/06/2026

In short

CVE-2019-9870 is a CRITICAL (CVSS 9.8) vulnerability affecting oembed (oembed project).
Chance of exploitation in the next 30 days (EPSS): 1.8%, higher than 79.2% of all vulnerabilities.
Fix: update to 2019-03-14 or later.

Package	Affected versions	Patched versions
oembed oembed_project	`< 2019-03-14`	`2019-03-14`

plugin.js in the w8tcha oEmbed plugin before 2019-03-14 for CKEditor mishandles SCRIPT elements.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.