CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
EPSS
Percentile
52.6%
WordPress users with lower privileges (like contributors) can inject
JavaScript code in the block editor using a specific payload, which is
executed within the dashboard. This can lead to XSS if an admin opens the
post in the editor. Execution of this attack does require an authenticated
user. This has been patched in WordPress 5.3.1, along with all the previous
WordPress versions from 3.7 to 5.3 via a minor release. Automatic updates
are enabled by default for minor releases and we strongly recommend that
you keep them enabled.
github.com/WordPress/wordpress-develop/commit/505dd6a20b6fc3d06130018c1caeff764248c29e
github.com/WordPress/wordpress-develop/security/advisories/GHSA-x3wp-h3qx-9w94
hackerone.com/reports/738644
launchpad.net/bugs/cve/CVE-2019-16780
nvd.nist.gov/vuln/detail/CVE-2019-16780
security-tracker.debian.org/tracker/CVE-2019-16780
wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
wpvulndb.com/vulnerabilities/9976
www.cve.org/CVERecord?id=CVE-2019-16780
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
EPSS
Percentile
52.6%