CVE-2021-26023: nagios favorites Cross-site Scripting
CVSS: 6.1v3.1MediumModified
Published 03-02-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-26023 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in nagios favorites. EPSS estimates a 25.18% chance of exploitation in the next 30 days, higher than 97.9% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
25.18%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 03-02-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to XSS.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
25.18%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
0.00 pp
From 25.18% on 21-09-2026
21-09-202621-10-2026
EPSS score25.18%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Nagios1 product
- favorites< 1.0.2
1 vendor · 1 product