Home/CVE/In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in t
CVE

CVE-2019-16781

In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in t

In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard. It can lead to an admin opening the affected post in the editor leading to XSS.

MEDIUM · CVSS 5.8 EPSS 0.03486
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

2
wordpress< 5.3.1
debian linuxall versions
▣

Scoring & Timeline

5.8
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Dec 2019 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9vThird Party Advisory
https://hackerone.com/reports/731301Permissions RequiredThird Party Advisory
https://seclists.org/bugtraq/2020/Jan/8Mailing ListThird Party Advisory
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/Release NotesThird Party Advisory
https://wpvulndb.com/vulnerabilities/9976Third Party Advisory
https://www.debian.org/security/2020/dsa-4599Third Party Advisory
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