THREATPORT/VULNERABILITY/CVE-2021-26024
MEDIUM SEVERITY

CVE-2021-26024

Favorites vulnerability

CVSS
5.3
EPSS
19.0%
EPSS pct
97th
Exploited
No known
The Favorites component before 1.0.2 for Nagios XI 5.8.0 is vulnerable to Insecure Direct Object Reference: it is possible to create favorites for any other user account.
Affected vendor
Nagios
Affected product
Favorites
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness type (CWE)
  • CWE-639 — Authorization Bypass Through User-Controlled Key
Published
2021-02-03

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to integrity.

Its EPSS score of 19.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2021-26024

  • Confirm whether Nagios Favorites is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-26024.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-26024

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-26024 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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