SB2024062819 - Multiple vulnerabilities in October CMS

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2024-25637)

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 passed via the X-October-Request-Handler header. A remote attacker can execute arbitrary HTML and script code in user's browser in context of vulnerable website, however requires the possibility to intercept and modify HTTP headers sent by the victim.

2) Open redirect (CVE-ID: CVE-2024-24764)

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the authenticated administrator to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Remediation

Install update from vendor's website.

References

• https://github.com/octobercms/october/security/advisories/GHSA-rjw8-v7rr-r563
• https://github.com/octobercms/october/security/advisories/GHSA-v2vf-jv88-3fp5