CVE-2020-3135 Cisco Unified Communications Manager Cross-Site Request Forgery Vulnerability
An attacker can trick a user into performing unauthorized actions on the Cisco UCM web interface, potentially escalating privileges or modifying data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-3135?
CVE-2020-3135 is a medium-severity vulnerability in Cisco Unified Communications Manager, published on 23 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in the web-based management interface of Cisco Unified Communications Manager (UCM) could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected device. The vulnerability is due to insufficient CSRF protections for the web-based management interface on an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to follow a malicious link. A successful exploit could allow the attacker to perform arbitrary actions with the privilege level of the targeted user.
Weakness: CWE-352
Which versions are affected by CVE-2020-3135?
It affects 1 product.
Products include Cisco Unified Communications Manager.
How do I fix CVE-2020-3135?
No fix has been published for CVE-2020-3135 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-3135 being exploited?
There is no known exploitation of CVE-2020-3135 in the wild and no public exploit code.
Other vulnerabilities in Cisco Unified Communications Manager
- CVE-2026-20230 Cisco Unified Communications Manager Server-Side Request Forgery (SSRF)
- CVE-2026-20045 Cisco Unified Communications Products Code Injection
- CVE-2025-20309 Cisco Unified Communications Manager Static SSH Credentials Vulnerability
- CVE-2011-1643 Information disclosure in n/a
- CVE-2024-20253 Deserialization in Cisco Packaged Contact Center Enterprise
Sources
Also known as GHSA-8q7q-4mc2-v628.