Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-35659 |
CWE-ID | CWE-79 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Pi-hole Web applications / Modules and components for CMS |
Vendor | Pi-hole |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU49191
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: CVE-2020-35659
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within DNS query log. A remote attacker can permanently inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website, when the Pi-hole administrator visits the Query Log or Long-term data Query Log page.
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.
MitigationInstall update from vendor's website.
Vulnerable software versionsPi-hole: 2.0 - 5.2.1
External linkshttp://blog.mirch.io/2020/12/24/pihole-xss/
http://discourse.pi-hole.net/t/pi-hole-core-web-v5-2-2-and-ftl-v5-3-3-released/41998
http://github.com/pi-hole/AdminLTE/pull/1665
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.