CVE-2021-34759: cisco cisco identity services engine software Cross-site Scripting
Vulnerability summary
CVE-2021-34759 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in cisco cisco identity services engine software. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47.3% of scored vulnerabilities.
Timeline
- 02-09-2021PublishedVulnerability first disclosed.
- 07-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attacker with administrative credentials 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 injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive, browser-based information. To exploit this vulnerability, an attacker would need valid administrative credentials.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.59%
Chance of exploitation in the next 30 days
Percentile
47%
Versus all other CVEs
30-day change
0.00 pp
From 0.59% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco2 products
- cisco identity services engine softwaren/a
- identity_services_engine< 2.2.0 | 2.2.0 | 2.2.0:patch1 | 2.2.0:patch10 | 2.2.0:patch12 | 2.2.0:patch13 | 2.2.0:patch14 | 2.2.0:patch15 | 2.2.0:patch16 | 2.2.0:patch17 | 2.2.0:patch2 | 2.2.0:patch3 | 2.2.0:patch4 | 2.2.0:patch5 | 2.2.0:patch6 | 2.2.0:patch7 | 2.2.0:patch8 | 2.2.0:patch9 | 2.3.0 | 2.3.0:patch1 | 2.3.0:patch2 | 2.3.0:patch3 | 2.3.0:patch4 | 2.3.0:patch5 | 2.3.0:patch6 | 2.3.0:patch7 | 2.4.0 | 2.4.0:patch1 | 2.4.0:patch10 | 2.4.0:patch11 | 2.4.0:patch12 | 2.4.0:patch13 | 2.4.0:patch14 | 2.4.0:patch2 | 2.4.0:patch3 | 2.4.0:patch4 | 2.4.0:patch5 | 2.4.0:patch6 | 2.4.0:patch7 | 2.4.0:patch8 | 2.4.0:patch9 | 2.6.0 | 2.6.0:patch1 | 2.6.0:patch2 | 2.6.0:patch3 | 2.6.0:patch5 | 2.6.0:patch6 | 2.6.0:patch7 | 2.6.0:patch8 | 2.6.0:patch9 | 2.7.0:patch1 | 2.7.0:patch2 | 2.7.0:patch3 | 2.7.0:patch4 | 3.0.0:patch1 | 3.0.0:patch2 | 3.0.0:patch3
1 vendor · 2 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-4HnZFewrVendor AdvisoryX Refsource CISCO