CVE-2021-34784
A vulnerability in the web-based management interface of Cisco Prime Infrastructure (PI) and Cisco Evolved Programmable Network Manager (EPNM) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. 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 an affected 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.
Key facts
- CVSS score
- 5.4 (v3.1)
- Severity
- MEDIUM
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
- CWE-79
- EPSS score
- 0.6% (47th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2021-21434)
- Published
- November 4, 2021
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2021-21434 in the EU Vulnerability Database. Last updated in EUVD on November 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- cisco / evolved programmable network manager
- cisco / prime infrastructure
Certified products that may be affected
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Cisco Prime Infrastructure 3.2 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-10860-2018 - archived
References
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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