CVE-2020-3135 - CVE House
Back to Database
Status published Medium CVE-2020-3135

Cisco Unified Communications Manager Cross-Site Request Forgery Vulnerability

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-3135

Credits & Attribution

No credits recorded in the NVD database.

References

More from Cisco

View All →
CVE-2025-20393
Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability
Critical 10
CVE-2025-20377
Cisco Unified Intelligence Center API Information Disclosure Vulnerability
Medium 4.3
CVE-2025-20376
Cisco Unified Contact Center Express Remote Code Execution Vulnerability
Medium 6.5
CVE-2025-20375
Cisco Unified Contact Center Express Arbitrary File Upload Vulnerability
Medium 6.5
CVE-2025-20374
Cisco Unified Contact Center Express Arbitrary File Download Vulnerability
Medium 4.9

Affected Vendor

Affected Software

Cisco Unified Communications Manager
Vulnerable Versions:
Unknown

Timeline

Official Publish: September 23rd, 2020
Last Modified: November 13th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weaknesses (CWE)

CWE-352

MITRE ATT&CK TTPs

T1566.002 Spearphishing Link
Initial Access
T1204.001 Malicious Link
Execution
T1098 Account Manipulation
Persistence
T1565.001 Stored Data Manipulation
Impact