Vulnerability identifier: #VU18284
Vulnerability risk: Medium
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
WP Fastest Cache
Web applications /
Modules and components for CMS
Vendor: Emre Vona
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 when processing the wpfastestcacheoptions wpFastestCachePreload_number or wpFastestCacheLanguage parameter. A remote 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
WP Fastest Cache: 0.8.8.5
External links
http://ansawaf.blogspot.com/2019/04/csrf-multiple-stored-xss-in-wp-fastest.html
http://docs.google.com/document/d/17JSC97ecikWalB_ZTScNipFoud2aFXb5mXEZ7g-KIQI/edit?usp=sharing
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.