Improper access restrictions in YellowPencil Visual CSS Style Editor plugin for WordPress
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-11886 |
| CWE-ID | CWE-284 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Visual CSS Style Editor Web applications / Modules and components for CMS |
| Vendor | WaspThemes |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Improper access control
EUVDB-ID: #VU20805
Risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-11886
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in yellow-pencil.php. A remote non-authenticated attacker can perform options update and compromise the website via vulnerable plugin.
Install updates from vendor's website.
Vulnerable software versionsVisual CSS Style Editor: 7.1.5 - 7.2.0
External linkshttp://www.wordfence.com/blog/2019/04/zero-day-vulnerability-in-yellow-pencil-visual-theme-customiz...
http://blog.nintechnet.com/zero-day-vulnerability-in-wordpress-visual-css-style-editor-plugin-activ...
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
