Cross-site scripting in Django

Published: 2019-06-04 | Updated: 2024-03-06

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2019-12308 CVE-2019-11358
CWE-ID	CWE-79 CWE-1321
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #2 is available.
Vulnerable software	Django Web applications / CMS
Vendor	Django Software Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU18672

Risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-12308

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 URL within the AdminURLFieldWidget. A remote attacker can trick the victim to follow a specially crafted link and display a clickable JavaScript link.

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

Django: 1.11 - 2.2.1

CPE2.3

External links

https://www.openwall.com/lists/oss-security/2019/06/03/2
https://docs.djangoproject.com/en/dev/releases/1.11.21/
https://docs.djangoproject.com/en/dev/releases/2.1.9/
https://docs.djangoproject.com/en/dev/releases/2.2.2/
https://docs.djangoproject.com/en/dev/releases/security/
https://groups.google.com/forum/#!topic/django-announce/GEbHU7YoVz8
https://www.djangoproject.com/weblog/2019/jun/03/security-releases/

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.

2) Prototype pollution

EUVDB-ID: #VU18092

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-11358

CWE-ID: CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes (\'Prototype Pollution\')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.

Mitigation

Update to the latest version.