CVE-2019-16780
Published: 26 December 2019
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
wordpress Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Not vulnerable
(5.3.2+dfsg1-1)
|
|
| groovy |
Not vulnerable
(5.3.2+dfsg1-1)
|
|
| hirsute |
Not vulnerable
(5.3.2+dfsg1-1)
|
|
| impish |
Not vulnerable
(5.3.2+dfsg1-1)
|
|
| jammy |
Not vulnerable
(5.3.2+dfsg1-1)
|
|
| kinetic |
Not vulnerable
(5.3.2+dfsg1-1)
|
|
| lunar |
Not vulnerable
(5.3.2+dfsg1-1)
|
|
| mantic |
Not vulnerable
(5.3.2+dfsg1-1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.3.2+dfsg1-1)
|
|
| xenial |
Needs triage
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.4 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | Required |
| Scope | Changed |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
References
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-x3wp-h3qx-9w94
- https://github.com/WordPress/wordpress-develop/commit/505dd6a20b6fc3d06130018c1caeff764248c29e
- https://hackerone.com/reports/738644
- https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
- https://wpvulndb.com/vulnerabilities/9976
- https://www.cve.org/CVERecord?id=CVE-2019-16780
- NVD
- Launchpad
- Debian