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Xperience CVE-2019-10068

CRITICAL
Deserialization of Untrusted Data (CWE-502)
2019-03-26 cve@mitre.org
9.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V1 - Encoding and Sanitization Safe deserialization, type allowlists
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could execute arbitrary code through malicious serialized objects by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Emergency Immediate action required. Why: CRITICAL + in CISA KEV (actively exploited), no patch available.
Exploited in the wild (CISA KEV) No patch listed yet 96.0% exploitation probability (EPSS)

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AnalysisAI

An issue was discovered in Kentico 12.0.x before 12.0.15, 11.0.x before 11.0.48, 10.0.x before 10.0.52, and 9.x versions. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. An issue was discovered in Kentico 12.0.x before 12.0.15, 11.0.x before 11.0.48, 10.0.x before 10.0.52, and 9.x versions. Due to a failure to validate security headers, it was possible for a specially crafted request to the staging service to bypass the initial authentication and proceed to deserialize user-controlled .NET object input. This deserialization then led to unauthenticated remote code execution on the server where the Kentico instance was hosted. Affected products include: Kentico Xperience. Version information: before 12.0.15.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Added to CISA KEV
Jul 14, 2026 - 04:22 CISA
CVE Published
Mar 26, 2019 - 18:29 nvd
CRITICAL 9.8

DescriptionNVD

An issue was discovered in Kentico 12.0.x before 12.0.15, 11.0.x before 11.0.48, 10.0.x before 10.0.52, and 9.x versions. Due to a failure to validate security headers, it was possible for a specially crafted request to the staging service to bypass the initial authentication and proceed to deserialize user-controlled .NET object input. This deserialization then led to unauthenticated remote code execution on the server where the Kentico instance was hosted.

Threat Intelligence Overview

EPSS Score
96.0%
Top 0% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV Yes
Public POC Yes
EPSS 96.0%
Patch available No
Active threat Yes
Deciding rule
CRITICAL + in CISA KEV (actively exploited), no patch available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Immediate
Exploitation· derived
Active
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
High

Priority Score

230
Low Medium High Critical
KEV: +50
EPSS: +96
CVSS: +49
PoC: +20
Weaponized: +15
Threat intel: 0
Gov advisory: 0

Attack Technique

Insecure deserialization occurs when an application converts serialized data (a stream of bytes representing an object's state) back into a living object without proper validation.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:a:kentico:xperience:*:*:*:*:*:*:*:*
cpe:2.3:a:kentico:xperience:*:*:*:*:*:*:*:*
cpe:2.3:a:kentico:xperience:*:*:*:*:*:*:*:*
cpe:2.3:a:kentico:xperience:*:*:*:*:*:*:*:*
CVE-2025-2747 CRITICAL POC
9.8 Mar 24

Kentico Xperience contains a second authentication bypass in the Staging Sync Server through None-type password handling

CVE-2025-2746 CRITICAL POC
9.8 Mar 24

Kentico Xperience through 13.0.172 contains an authentication bypass in the Staging Sync Server through empty SHA1 usern

CVE-2025-2749 HIGH POC
7.2 Mar 24

Remote code execution in Kentico Xperience CMS versions through 13.0.178 allows authenticated administrators to upload a

CVE-2018-5282 HIGH POC
7.8 Jan 08

Kentico 9.0 through 11.0 has a stack-based buffer overflow via the SqlName, SqlPswd, Database, UserName, or Password fie

CVE-2019-6242 HIGH POC
7.2 Feb 08

Kentico v10.0.42 allows Global Administrators to read the cleartext SMTP Password by navigating to the SMTP configuratio

CVE-2018-7046 HIGH POC
7.2 Feb 20

Arbitrary code execution vulnerability in Kentico 9 through 11 allows remote authenticated users to execute arbitrary op

CVE-2025-32369 MEDIUM POC
6.4 Apr 06

Kentico Xperience before 13.0.181 allows authenticated users to distribute malicious content (for stored XSS) via certai

CVE-2025-2748 MEDIUM POC
6.1 Mar 24

The Kentico Xperience application does not fully validate or filter files uploaded via the multiple-file upload function

CVE-2021-43991 MEDIUM POC
5.4 Dec 03

The Kentico Xperience CMS version 13.0 - 13.0.43 is vulnerable to a persistent Cross-Site Scripting (XSS) vulnerability

CVE-2019-19493 MEDIUM POC
5.4 Dec 02

Kentico before 12.0.50 allows file uploads in which the Content-Type header is inconsistent with the file extension, lea

CVE-2019-12102 CRITICAL
9.1 May 22

Kentico 11 through 12 lets attackers upload and explore files without authentication via the cmsmodules/medialibrary/for

CVE-2025-2794 HIGH
8.7 Mar 31

An unsafe reflection vulnerability in Kentico Xperience allows an unauthenticated attacker to kill the current process,

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