CVE-2021-1582 json
Cisco Application Policy Infrastructure Controller Stored Cross-Site Scripting Vulnerability
published 2021-08-25 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7049
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
A vulnerability in the web UI of Cisco Application Policy Infrastructure Controller (APIC) or Cisco Cloud APIC could allow an authenticated, remote attacker to perform a stored cross-site scripting attack on an affected system. This vulnerability is due to improper input validation in the web UI. An authenticated attacker could exploit this vulnerability by sending malicious input to the web UI. A successful exploit could allow the attacker to execute arbitrary script code in the context of the web-based interface or access sensitive, browser-based information.
Patch / fix
- cisco application_policy_infrastructure_controller 3.2\(10f\), 4.2\(7i\), 5.2\(2f\)
- cisco cloud_application_policy_infrastructure_controller 3.2\(10f\), 4.2\(7i\), 5.2\(1h\)
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Affected products
- Cisco Cisco Application Policy Infrastructure Controller (APIC)
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
tools.cisco.com
/security/center/content/CiscoSecurityAdvisory/cisco-sa-capic-scss-bFT75YrM
vendor-advisory, patch
Sources
- CVE List CVE-2021-1582
- NVD CVE-2021-1582
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.