Cross-site scripting in miniOrange SAML SP Single Sign On – SSO

1) Cross-site scripting

EUVDB-ID: #VU19376

Risk: Low

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-2019-12346

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

Exploit availability: No

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 data passed via a specially crafted SAMLResponse XML post. 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

Update to version 4.8.73.

Vulnerable software versions

SAML SP Single Sign On – SSO: 3.0 - 4.8.72

External links

http://zeroauth.ltd/blog/2019/05/27/cve-2019-12346-miniorange-saml-sp-single-sign-on-wordpress-plugin-xss/
http://plugins.trac.wordpress.org/changeset/2090105/miniorange-saml-20-single-sign-on

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.