SB2023071343 - Reflected XSS in Zimbra Collaboration Suite

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2023-37580)

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 Zimbra Classic Web Client. 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.

Note, the vulnerability is being exploited in the wild.

Remediation

Install update from vendor's website.

References

• https://info.zimbra.com/security-update-zimbra-collaboration-suite-version-8.8.15-important
• https://twitter.com/maddiestone/status/1679542322772721664
• https://wiki.zimbra.com/wiki/Security_Center#ZCS_8.8.15_Patch_41_Released