Stored cross-site scripting in Popup Builder plugin for WordPress



Published: 2019-10-18
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-79
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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Popup Builder – Responsive WordPress Pop up – Subscription & Newsletter
Web applications / Modules and components for CMS

Vendor Sygnoos

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Stored cross-site scripting

EUVDB-ID: #VU21937

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: N/A

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

Exploit availability: No

Description

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

The vulnerability exists "Add Post" or "Add Page" due to insufficient sanitization of user-supplied data passed via the HTTP GET parameter to the "/wordpress/wp-admin/post-new.php" script. A remote attacker can inject 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 updates from vendor's website.

Vulnerable software versions

Popup Builder – Responsive WordPress Pop up – Subscription & Newsletter: 1.1.4 - 3.49

External links

http://www.exploit-db.com/exploits/47518/


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.



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