Is CVE-2021-47712 actively exploited?

CVE-2021-47712 has no public evidence of in-the-wild exploitation as of 2025-12-24.

What is the CVSS score for CVE-2021-47712?

CVE-2021-47712 has a CVSS score of 6.9 (MEDIUM severity). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2021-47712?

Patch guidance is available from kentico security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-47712.

CVE-2021-47712 - remediation guidance & executive summary

Description

A cryptography vulnerability in Kentico Xperience allows attackers to potentially manipulate URL hash values through existing hashing mechanisms. The hotfix introduces an additional security layer to prevent hash value reuse and potential exploitation.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-327

Metadata

Primary Vendor: KENTICO
Published: 12/18/2025
Last Modified: 12/24/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-47712

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary