Xperience
CVE-2025-2748
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. EPSS exploitation probability: 0.19%. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAIv1 – Mar 28, 2026
The Kentico Xperience application does not fully validate or filter files uploaded via the multiple-file upload functionality, which allows for stored XSS.0.178. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
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 Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The Kentico Xperience application does not fully validate or filter files uploaded via the multiple-file upload functionality, which allows for stored XSS.0.178. Affected products include: Kentico Xperience. Version information: through 13.0.178..
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
The Kentico Xperience application does not fully validate or filter files uploaded via the multiple-file upload functionality, which allows for stored XSS.This issue affects Kentico Xperience through 13.0.178.
Executive ViewAI
CVE-2025-2748 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. A patch is available and should be applied during regular vulnerability management.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.
Affected Products (CPE)CVE.org
Kentico Xperience contains a second authentication bypass in the Staging Sync Server through None-type password handling
Kentico Xperience through 13.0.172 contains an authentication bypass in the Staging Sync Server through empty SHA1 usern
Remote code execution in Kentico Xperience CMS versions through 13.0.178 allows authenticated administrators to upload a
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
Kentico 9.0 through 11.0 has a stack-based buffer overflow via the SqlName, SqlPswd, Database, UserName, or Password fie
Kentico v10.0.42 allows Global Administrators to read the cleartext SMTP Password by navigating to the SMTP configuratio
Arbitrary code execution vulnerability in Kentico 9 through 11 allows remote authenticated users to execute arbitrary op
Kentico Xperience before 13.0.181 allows authenticated users to distribute malicious content (for stored XSS) via certai
The Kentico Xperience CMS version 13.0 - 13.0.43 is vulnerable to a persistent Cross-Site Scripting (XSS) vulnerability
Kentico before 12.0.50 allows file uploads in which the Content-Type header is inconsistent with the file extension, lea
Kentico 11 through 12 lets attackers upload and explore files without authentication via the cmsmodules/medialibrary/for
An unsafe reflection vulnerability in Kentico Xperience allows an unauthenticated attacker to kill the current process,
GitHub PoC
Exploit-DB