Stored cross-site scripting in Async JavaScript plugin for WordPress



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-79
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
 Async JavaScript
Web applications / Modules and components for CMS

Vendor Frank Goossens (futtta)

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Stored cross-site scripting

EUVDB-ID: #VU25677

Risk: Medium

CVSSv4.0: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:A/U:Green]

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 due to insufficient sanitization of user-supplied data in the "wp-admin/admin-ajax.php" file with the "aj_steps" AJAX action. A remote authenticated 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.

Note: the vulnerability is being actively exploited in the wild.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Async JavaScript: 1.14.12.10 - 2.19.07.14

CPE2.3 External links

https://wpvulndb.com/vulnerabilities/10098/
https://www.wordfence.com/blog/2020/02/site-takeover-campaign-exploits-multiple-zero-day-vulnerabilities/


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?

Yes. This vulnerability is being exploited in the wild.



###SIDEBAR###