SB2020061504 - Multiple vulnerabilities in Bolt CMS

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Cross-site request forgery (CVE-ID: CVE-2020-4040)

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the preview generating endpoint. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

2) Stored cross-site scripting (CVE-ID: CVE-2020-4041)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the filename of uploaded files. A remote attacker can permanently inject 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.

Remediation

Install update from vendor's website.

References

• https://github.com/bolt/bolt/commit/b42cbfcf3e3108c46a80581216ba03ef449e419f
• https://github.com/bolt/bolt/pull/7853
• https://github.com/bolt/bolt/security/advisories/GHSA-2q66-6cc3-6xm8
• https://github.com/bolt/bolt/security/advisories/GHSA-68q3-7wjp-7q3j