Cisco Unified Computing System up to 4.3(5e) Web-based Management Interface cross site scripting

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.4 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as problematic, was found in Cisco Unified Computing System. Affected by this vulnerability is an unknown functionality of the component Web-based Management Interface. Such manipulation leads to cross site scripting. This vulnerability is documented as CVE-2025-20296. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.
Details
A vulnerability was found in Cisco Unified Computing System. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Web-based Management Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:
A vulnerability in the web-based management interface of Cisco UCS Manager Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious data into specific pages of the interface. 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. To exploit this vulnerability, the attacker must be a member of the Administrator or AAA Administrator role.
The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2025-20296 since 10/10/2024. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1917). Once again VulDB remains the best source for vulnerability data.
Affected
- Cisco Unified Computing System (UCS)
- Cisco Integrated Management Controller
Product
Type
Vendor
Name
Version
- 3.2(1d)
- 3.2(2b)
- 3.2(2c)
- 3.2(2d)
- 3.2(2e)
- 3.2(2f)
- 3.2(3a)
- 3.2(3b)
- 3.2(3d)
- 3.2(3e)
- 3.2(3g)
- 3.2(3h)
- 3.2(3i)
- 3.2(3j)
- 3.2(3k)
- 3.2(3l)
- 3.2(3n)
- 3.2(3o)
- 3.2(3p)
- 4.0(1a)
- 4.0(1b)
- 4.0(1c)
- 4.0(1d)
- 4.0(2a)
- 4.0(2b)
- 4.0(2d)
- 4.0(2e)
- 4.0(4a)
- 4.0(4b)
- 4.0(4c)
- 4.0(4d)
- 4.0(4e)
- 4.0(4f)
- 4.0(4g)
- 4.0(4h)
- 4.0(4i)
- 4.0(4k)
- 4.0(4l)
- 4.0(4m)
- 4.0(4n)
- 4.0(4o)
- 4.1(1a)
- 4.1(1b)
- 4.1(1c)
- 4.1(1d)
- 4.1(1e)
- 4.1(2a)
- 4.1(2b)
- 4.1(2c)
- 4.1(3a)
- 4.1(3b)
- 4.1(3c)
- 4.1(3d)
- 4.1(3e)
- 4.1(3f)
- 4.1(3h)
- 4.1(3i)
- 4.1(3j)
- 4.1(3k)
- 4.1(3l)
- 4.1(3m)
- 4.1(3n)
- 4.1(4a)
- 4.2(1c)
- 4.2(1d)
- 4.2(1f)
- 4.2(1i)
- 4.2(1k)
- 4.2(1l)
- 4.2(1m)
- 4.2(1n)
- 4.2(2a)
- 4.2(2c)
- 4.2(2d)
- 4.2(2e)
- 4.2(3b)
- 4.2(3d)
- 4.2(3e)
- 4.2(3g)
- 4.2(3h)
- 4.2(3i)
- 4.2(3j)
- 4.2(3k)
- 4.2(3l)
- 4.2(3m)
- 4.2(3n)
- 4.2(3o)
- 4.3(2b)
- 4.3(2c)
- 4.3(2e)
- 4.3(2f)
- 4.3(3a)
- 4.3(3c)
- 4.3(4a)
- 4.3(4b)
- 4.3(4c)
- 4.3(4d)
- 4.3(4e)
- 4.3(4f)
- 4.3(5a)
- 4.3(5c)
- 4.3(5d)
- 4.3(5e)
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.4VulDB Meta Temp Score: 4.4
VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 5.4
CNA Vector (cisco): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Timeline
10/10/2024 CVE reserved08/27/2025 Advisory disclosed
08/27/2025 VulDB entry created
08/29/2025 VulDB entry last update
Sources
Vendor: cisco.comAdvisory: cisco-sa-ucs-xss-Ey6XhyPS
Status: Confirmed
CVE: CVE-2025-20296 (🔒)
GCVE (CVE): GCVE-0-2025-20296
GCVE (VulDB): GCVE-100-321596
CERT Bund: WID-SEC-2025-1917 - Cisco UCS und IMC: Mehrere Schwachstellen
Entry
Created: 08/27/2025 19:11Updated: 08/29/2025 23:49
Changes: 08/27/2025 19:11 (65), 08/28/2025 11:21 (7), 08/29/2025 23:49 (1)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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