Squidex
CVE-2023-46252
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. Public proof-of-concept exploit code is available. |
| 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 meAnalysisAI
Squidex is an open source headless CMS and content management hub. Rated medium severity (CVSS 6.1), 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. 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
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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. Squidex is an open source headless CMS and content management hub. Affected versions are missing origin verification in a postMessage handler which introduces a Cross-Site Scripting (XSS) vulnerability. The editor-sdk.js file defines three different class-like functions, which employ a global message event listener: SquidexSidebar, SquidexWidget, and SquidexFormField. The registered event listener takes some action based on the type of the received message. For example, when the SquidexFormField receives a message with the type valueChanged, the value property is updated. The SquidexFormField class is for example used in the editor-editorjs.html file, which can be accessed via the public wwwroot folder. It uses the onValueChanged method to register a callback function, which passes the value provided from the message event to the editor.render. Passing an attacker-controlled value to this function introduces a Cross-Site Scripting (XSS) vulnerability. Affected products include: Squidex.Io Squidex.
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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
DescriptionNVD
Squidex is an open source headless CMS and content management hub. Affected versions are missing origin verification in a postMessage handler which introduces a Cross-Site Scripting (XSS) vulnerability. The editor-sdk.js file defines three different class-like functions, which employ a global message event listener: SquidexSidebar, SquidexWidget, and SquidexFormField. The registered event listener takes some action based on the type of the received message. For example, when the SquidexFormField receives a message with the type valueChanged, the value property is updated. The SquidexFormField class is for example used in the editor-editorjs.html file, which can be accessed via the public wwwroot folder. It uses the onValueChanged method to register a callback function, which passes the value provided from the message event to the editor.render. Passing an attacker-controlled value to this function introduces a Cross-Site Scripting (XSS) vulnerability.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
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.
Affected Products (CPE)NVD
Server-Side Request Forgery (SSRF) vulnerability in Squidex CMS webhook configuration allows authenticated administrator
Squidex is an open source headless CMS and content management hub. Rated high severity (CVSS 7.2), this vulnerability is
Cross-Site Request Forgery (CSRF) in GitHub repository squidex/squidex prior to 7.4.0. Rated medium severity (CVSS 6.5),
Squidex before 7.4.0 was discovered to contain a squid.svg cross-site scripting (XSS) vulnerability. Rated medium severi
Improper Handling of Additional Special Element in GitHub repository squidex/squidex prior to 7.4.0. Rated medium severi
Squidex before 7.9.0 allows XSS via an SVG document to the Upload Assets feature. Rated medium severity (CVSS 5.4), this
Squidex is an open source headless CMS and content management hub. Rated medium severity (CVSS 5.4), this vulnerability
Improper Handling of Additional Special Element in GitHub repository squidex/squidex prior to 7.4.0. Rated medium severi
Server-Side Request Forgery in Squidex versions prior to 7.23.0 allows authenticated users with asset upload permissions
Server-Side Request Forgery (SSRF) in Squidex versions before 7.23.0 allows authenticated users with schema editing perm
Server-Side Request Forgery in Squidex's backup restoration endpoint allows authenticated administrators to probe intern
Blind Server-Side Request Forgery (SSRF) in Squidex prior to version 7.23.0 allows authenticated administrators to force
Exploit-DB