Cross-site scripting in Cisco Unified Communications Manager
Priority LOW 28CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM), Cisco Unified CM Session Management Edition (Unified CM SME), and Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
Why it matters now
EPSS 0.00486 42nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Unified Communications Manager | 12.0(1)SU1; 12.0(1)SU2; 12.0(1)SU3; 12.0(1)SU4; 12.0(1)SU5; 12.5(1); 12.5(1)SU1; 12.5(1)SU2; 12.5(1)SU3; 12.5(1)SU4; 12.5(1)SU5; 12.5(1)SU6; 12.5(1)SU7; 12.5(1)SU7a; 12.5(1)SU8; 14; 14SU1; 14SU2; 14SU3 | — | No fix listed | CNA |
| Cisco | Cisco Unified Communications Manager IM and Presence Service | N/A | — | No fix listed | CNA |
| Cisco | Cisco Unified Communications Manager / Cisco Unity Connection | 10.5(2)SU10; 10.5(1); 10.5(1)SU1; 10.5(1)SU1a; 10.5(2); 10.5(2)SU1; 10.5(2)SU2; 10.5(2)SU3; 10.5(2)SU4; 10.5(2)SU5; 10.5(2)SU6; 10.5(2)SU7; 10.5(2)SU8; 10.5(2)SU9; 10.5(2)SU2a; 10.5(2)SU3a; 10.5(2)SU4a; 10.5(2)SU6a; 11.0(1); 11.0(1a); 11.0(1a)SU1; 11.0(1a)SU2; 11.0(1a)SU3; 11.0(1a)SU3a; 11.0(1a)SU4; 11.0.1; 11.0.2; 11.0.5; 11.5(1); 11.5(1)SU1; 11.5(1)SU2; 11.5(1)SU3; 11.5(1)SU3a; 11.5(1)SU3b; 11.5(1)SU4; 11.5(1)SU5; 11.5(1)SU6; 11.5(1)SU7; 11.5(1)SU8; 11.5(1)SU9; 11.5(1)SU10; 11.5(1)SU11; 10.0(1)SU2; 10.0(1); 10.0(1)SU1 | — | No fix listed | CNA |
- Cisco Unified Communications Manager VendorCisco Affected 12.0(1)SU1; 12.0(1)SU2; 12.0(1)SU3; 12.0(1)SU4; 12.0(1)SU5; 12.5(1); 12.5(1)SU1; 12.5(1)SU2; 12.5(1)SU3; 12.5(1)SU4; 12.5(1)SU5; 12.5(1)SU6; 12.5(1)SU7; 12.5(1)SU7a; 12.5(1)SU8; 14; 14SU1; 14SU2; 14SU3 Fixed in — No fix listed CNA
- Cisco Unified Communications Manager IM and Presence Service VendorCisco Affected N/A Fixed in — No fix listed CNA
- Cisco Unified Communications Manager / Cisco Unity Connection VendorCisco Affected 10.5(2)SU10; 10.5(1); 10.5(1)SU1; 10.5(1)SU1a; 10.5(2); 10.5(2)SU1; 10.5(2)SU2; 10.5(2)SU3; 10.5(2)SU4; 10.5(2)SU5; 10.5(2)SU6; 10.5(2)SU7; 10.5(2)SU8; 10.5(2)SU9; 10.5(2)SU2a; 10.5(2)SU3a; 10.5(2)SU4a; 10.5(2)SU6a; 11.0(1); 11.0(1a); 11.0(1a)SU1; 11.0(1a)SU2; 11.0(1a)SU3; 11.0(1a)SU3a; 11.0(1a)SU4; 11.0.1; 11.0.2; 11.0.5; 11.5(1); 11.5(1)SU1; 11.5(1)SU2; 11.5(1)SU3; 11.5(1)SU3a; 11.5(1)SU3b; 11.5(1)SU4; 11.5(1)SU5; 11.5(1)SU6; 11.5(1)SU7; 11.5(1)SU8; 11.5(1)SU9; 11.5(1)SU10; 11.5(1)SU11; 10.0(1)SU2; 10.0(1); 10.0(1)SU1 Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:unified_communications_manager:11.5\(1\):*:*:*:*:*:*:* | 11.5(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:11.5\(1\):*:*:*:session_management:*:*:* | 11.5(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:*:*:*:* | 12.5(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:session_management:*:*:* | 12.5(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:14.0:*:*:*:*:*:*:* | 14.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager:14.0:*:*:*:session_management:*:*:* | 14.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5\(1\):*:*:*:*:*:*:* | 11.5(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:12.5\(1\):*:*:*:*:*:*:* | 12.5(1) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:14.0:*:*:*:*:*:*:* | 14.0 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:unified_communications_manager:11.5\(1\):*:*:*:*:*:*:* Versions 11.5(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:11.5\(1\):*:*:*:session_management:*:*:* Versions 11.5(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:*:*:*:* Versions 12.5(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:session_management:*:*:* Versions 12.5(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:14.0:*:*:*:*:*:*:* Versions 14.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager:14.0:*:*:*:session_management:*:*:* Versions 14.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:11.5\(1\):*:*:*:*:*:*:* Versions 11.5(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:12.5\(1\):*:*:*:*:*:*:* Versions 12.5(1) Vulnerable ·Cisco
- cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:14.0:*:*:*:*:*:*:* Versions 14.0 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-20242
- 2026-10-03 Alias added: GHSA-2prg-gf64-mf8x
References
Advisory 1
More Cisco Unified Communications Manager vulnerabilities
- TI-2026-16259 Cisco Unified Communications Products Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
- TI-2026-16423 Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability KEVCVSS 3.1HIGH 8.6
- TI-2008-00019 Heap-based buffer overflow in the Certificate Trust List (CTL) Provider service… CVSS 2.0HIGH 10.0
- TI-2013-05779 The TFTP service in Cisco Unified Communications Manager (aka CUCM or Unified CM) allows… CVSS 3.1HIGH 7.3
- TI-2011-02932 Directory traversal vulnerability in Cisco Unified Communications Manager (CUCM) 5.x and… CVSS 2.0HIGH 7.8
Sources
- CVE-2023-20242 · CVE Program
- CVE-2023-20242 · NVD
- FIRST EPSS
- GHSA-2prg-gf64-mf8x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences