Cross-site scripting in Craft CMS



| Updated: 2020-08-08
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-9554
CWE-ID CWE-79
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Craft CMS
Web applications / CMS

Vendor Pixel & Tonic, Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Cross-site scripting

EUVDB-ID: #VU34922

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-9554

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

Exploit availability: Yes

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Craft CMS: 3.1.12

CPE2.3 External links

https://packetstormsecurity.com/files/151944/Craft-CMS-3.1.12-Pro-Cross-Site-Scripting.html
https://www.exploit-db.com/exploits/46496


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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