THREATPORT/VULNERABILITY/CVE-2021-26296
HIGH SEVERITY

CVE-2021-26296

Myfaces vulnerability

CVSS
7.5
EPSS
3.0%
EPSS pct
86th
Exploited
No known
In the default configuration, Apache MyFaces Core versions 2.2.0 to 2.2.13, 2.3.0 to 2.3.7, 2.3-next-M1 to 2.3-next-M4, and 3.0.0-RC1 use cryptographically weak implicit and explicit cross-site request forgery (CSRF) tokens. Due to that limitation, it is possible (although difficult) for an attacker to calculate a future CSRF token value and to use that value to trick a user into executing unwanted actions on an application.
Affected vendor
Apache
Affected product
Myfaces
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-352 — Cross-Site Request Forgery (CSRF)
Published
2021-02-19

Risk analysis

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

Its EPSS score of 3.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2021-26296

  • Confirm whether Apache Myfaces is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-26296.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-26296

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