CVE-2025-2747 Kentico CVE debrief

Who should care

Kentico Xperience CMS administrators, web application owners, vulnerability management teams, and security operations staff responsible for internet-facing CMS deployments.

Technical summary

The vulnerability is described in the source corpus as an authentication bypass using an alternate path or channel in Kentico Xperience CMS. CISA’s KEV entry confirms the issue is considered known to be exploited in the wild, but the supplied materials do not provide attack mechanics, affected versions, or a CVSS score. The only remediation direction present in the corpus is to apply mitigations per vendor instructions; the KEV notes also point to Kentico hotfixes as the vendor resource.

Defensive priority

High. KEV inclusion means the issue should be treated as urgent, especially for any exposed or production Kentico Xperience CMS instance.

Recommended defensive actions

• Inventory all Kentico Xperience CMS deployments and determine which versions are in use.
• Check whether any instance is internet-facing or otherwise high exposure.
• Apply Kentico hotfixes or mitigations referenced by the vendor as soon as possible.
• If mitigations are unavailable or cannot be applied quickly, isolate the system or discontinue use until it can be secured.
• Follow CISA BOD 22-01 guidance for cloud services where applicable.
• Validate that authentication and access-control paths are functioning as expected after remediation.
• Track remediation status through vulnerability management and incident-response workflows because this CVE is in CISA KEV.

Evidence notes

Evidence is limited to the supplied CISA KEV source item and official reference links. The corpus confirms CVE-2025-2747 is a Kentico Xperience CMS authentication bypass issue and that it was added to CISA KEV on 2025-10-20 with a due date of 2025-11-10. The source metadata explicitly instructs defenders to apply mitigations per vendor instructions and references Kentico hotfixes. No CVSS score, affected-version list, exploit details, or vendor advisory text was supplied in the corpus.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.