Vulnerability Details : CVE-2019-9787
Potential exploit
WordPress before 5.1.1 does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access, which allows arbitrary changes to .php files. This is related to wp-admin/includes/ajax-actions.php and wp-includes/comment.php.
Vulnerability category: Cross site scripting (XSS)Cross-site request forgery (CSRF)Execute code
Products affected by CVE-2019-9787
- cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Threat overview for CVE-2019-9787
Top countries where our scanners detected CVE-2019-9787
Top open port discovered on systems with this issue
80
IPs affected by CVE-2019-9787 2
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2019-9787
22.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 97 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-9787
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2019-9787
-
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-9787
-
https://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/
News – WordPress 5.1.1 Security and Maintenance Release – WordPress.orgRelease Notes;Vendor Advisory
-
https://blog.ripstech.com/2019/wordpress-csrf-to-rce/
WordPress 5.1 CSRF to Remote Code ExecutionExploit;Third Party Advisory
-
https://wordpress.org/support/wordpress-version/version-5-1-1/
Version 5.1.1 | WordPress.orgRelease Notes;Vendor Advisory
-
http://www.securityfocus.com/bid/107411
WordPress CVE-2019-9787 Remote Code Execution VulnerabilityThird Party Advisory;VDB Entry
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https://www.debian.org/security/2020/dsa-4677
Debian -- Security Information -- DSA-4677-1 wordpress
-
https://wpvulndb.com/vulnerabilities/9230
WordPress 3.9-5.1 - Comment Cross-Site Scripting (XSS)
-
https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html
[SECURITY] [DLA 1742-1] wordpress security update
-
https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b
Comments: Improve comment content filtering. · WordPress/WordPress@0292de6 · GitHubPatch;Third Party Advisory
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