4.8

CVE-2021-34759: cisco cisco identity services engine software Cross-site Scripting

CVSS: 4.8v3.1MediumModified
Published 02-09-2021Last modified 07-11-2024

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.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.59%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-09-2021
    PublishedVulnerability first disclosed.
  2. 07-11-2024
    Last 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

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

18-09-202618-10-2026
EPSS score
0.59%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected 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