CVE-2019-1689 Cisco Webex Teams for iOS Arbitrary File Upload Vulnerability

What is CVE-2019-1689?

CVE-2019-1689 is a high-severity vulnerability in Cisco Webex Teams, published on 25 Feb 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability in the client application for iOS of Cisco Webex Teams could allow an authenticated, remote attacker to upload arbitrary files within the scope of the iOS application. The vulnerability is due to improper input validation in the client application. An attacker could exploit this vulnerability by sending a malicious file to a targeted user and persuading the user to manually open it. An exploit could allow the attacker to overwrite sensitive application files and eventually cause a denial of service (DoS) condition by foreclosing future access to the system to the targeted user. This vulnerability is fixed in version 3.13.26920.

Weakness: CWE-20

Which versions are affected by CVE-2019-1689?

It affects 1 product.

Products include Cisco Webex Teams.

How do I fix CVE-2019-1689?

No fix has been published for CVE-2019-1689 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1689 being exploited?

There is no known exploitation of CVE-2019-1689 in the wild and no public exploit code.

Other vulnerabilities in Cisco Webex Teams

• CVE-2025-20236 Cisco Webex App Client-Side Remote Code Execution Vulnerability High 8.8
• CVE-2018-0387 Code injection in Cisco Webex Teams unknown High 8.8
• CVE-2018-0436 Cisco Webex Teams Information Disclosure and Modification Vulnerability High 8.7
• CVE-2020-3535 Cisco Webex Teams Client for Windows DLL Hijacking Vulnerability High 7.8
• CVE-2019-1636 Cisco Webex Teams URI Handler Insecure Library Loading Vulnerability High 7.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-rg62-gwr6-wv2q.