Vulnerability Details : CVE-2019-16780
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2019-16780
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
- cpe:2.3:a:wordpress:wordpress:3.7:-:*:*:*:*:*:*
Threat overview for CVE-2019-16780
Top countries where our scanners detected CVE-2019-16780
Top open port discovered on systems with this issue
80
IPs affected by CVE-2019-16780 33
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2019-16780
0.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 54 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-16780
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST | |
5.8
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N |
1.3
|
4.0
|
GitHub, Inc. |
CWE ids for CVE-2019-16780
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2019-16780
-
https://www.debian.org/security/2020/dsa-4599
Debian -- Security Information -- DSA-4599-1 wordpressThird Party Advisory
-
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
News – WordPress 5.3.1 Security and Maintenance Release – WordPress.orgRelease Notes;Third Party Advisory
-
https://hackerone.com/reports/738644
Sign inPermissions Required;Third Party Advisory
-
https://github.com/WordPress/wordpress-develop/commit/505dd6a20b6fc3d06130018c1caeff764248c29e
Prevent stored XSS in the block editor. · WordPress/wordpress-develop@505dd6a · GitHubPatch;Third Party Advisory
-
https://seclists.org/bugtraq/2020/Jan/8
Bugtraq: [SECURITY] [DSA 4599-1] wordpress security updateMailing List;Third Party Advisory
-
https://wpvulndb.com/vulnerabilities/9976
WordPress <= 5.3 - Stored XSS via Block Editor ContentThird Party Advisory
-
https://www.debian.org/security/2020/dsa-4677
Debian -- Security Information -- DSA-4677-1 wordpressThird Party Advisory
-
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-x3wp-h3qx-9w94
Stored cross-site scripting (XSS) in WordPress block editor · Advisory · WordPress/wordpress-develop · GitHubThird Party Advisory
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