Cross-site scripting in CSS Hero plugin for WordPress



Published: 2019-12-05
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-19133
CWE-ID CWE-79
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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CSS Hero
Web applications / Modules and components for CMS

Vendor csshero.org

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Cross-site scripting

EUVDB-ID: #VU23410

Risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-19133

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data passed via the URI in a "csshero_action=edit_page" request. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

CSS Hero: 4.03


CPE2.3 External links

http://packetstormsecurity.com/files/155558/WordPress-CSS-Hero-4.0.3-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2019/Dec/6
http://wpvulndb.com/vulnerabilities/9966
http://www.csshero.org/css-hero-4-07-is-here/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.



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