Plattform
go
Komponente
github.com/beego/beego
Behoben in
2.3.7
2.3.6
CVE-2025-30223 describes a critical Cross-Site Scripting (XSS) vulnerability affecting the Beego Go web framework. This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to session hijacking, data theft, or defacement. The vulnerability stems from insufficient input sanitization within the RenderForm() function. Affected versions include Beego releases prior to 2.3.6; upgrading to the latest version is the recommended remediation.
The XSS vulnerability in Beego allows attackers to execute arbitrary JavaScript code within the context of a victim's browser. This can be exploited to steal session cookies, redirect users to malicious websites, or modify the content of web pages. A successful attack could compromise sensitive user data, including credentials and personal information. The impact is particularly severe in applications that rely on Beego for rendering forms and handling user input. Given the widespread use of Go and web frameworks like Beego, this vulnerability has a potentially broad attack surface.
CVE-2025-30223 was publicly disclosed on 2025-04-01. While no active exploitation campaigns have been publicly confirmed, the CRITICAL severity and the ease of exploitation (reflected XSS) suggest a high probability of exploitation. No Proof-of-Concept (PoC) code has been publicly released as of this writing, but the vulnerability is likely to be targeted by automated scanners and malicious actors. It is not currently listed on the CISA KEV catalog.
Applications built using the Beego Go web framework, particularly those that heavily rely on user-submitted data within forms, are at significant risk. Projects using older versions of Beego (prior to 2.3.6) and lacking robust input validation mechanisms are especially vulnerable. Shared hosting environments where multiple applications share the same Beego installation are also at increased risk.
• go / application: Examine application code for usage of github.com/beego/beego and specifically the RenderForm() function. Look for instances where user input is directly passed to this function without proper sanitization.
• go / application: Use static analysis tools to identify potential XSS vulnerabilities in Go code that utilizes Beego.
• generic web: Monitor web application logs for unusual JavaScript execution patterns or attempts to inject malicious scripts.
• generic web: Implement a WAF rule to block requests containing suspicious JavaScript payloads targeting form fields.
disclosure
Exploit-Status
EPSS
0.34% (56% Perzentil)
CISA SSVC
CVSS-Vektor
The primary mitigation for CVE-2025-30223 is to upgrade to Beego version 2.3.6 or later, which includes the necessary input sanitization fixes. If upgrading immediately is not feasible, consider implementing input validation and output encoding on the application level to sanitize user-supplied data before rendering it in forms. Web Application Firewalls (WAFs) configured with rules to detect and block XSS payloads can provide an additional layer of defense. Monitor application logs for suspicious activity, such as unusual JavaScript execution patterns.
Aktualisieren Sie die Beego-Version auf 2.3.6 oder höher. Diese Version behebt die XSS-Schwachstelle in der RenderForm()-Funktion. Stellen Sie sicher, dass Sie alle benutzerdefinierten Codes überprüfen und anpassen, die RenderForm() verwenden, um sicherzustellen, dass Benutzereingaben korrekt escaped werden.
Schwachstellenanalysen und kritische Warnungen direkt in deinen Posteingang.
CVE-2025-30223 is a critical XSS vulnerability in Beego versions prior to 2.3.6, allowing attackers to inject malicious scripts via unescaped user input in the RenderForm() function.
If you are using Beego version 2.3.5 or earlier, you are affected by this vulnerability. Assess your application's usage of RenderForm() and implement mitigations if immediate upgrade is not possible.
Upgrade to Beego version 2.3.6 or later. Implement input validation and output encoding as an interim measure.
While no active exploitation campaigns have been publicly confirmed, the vulnerability's severity and ease of exploitation suggest a high probability of exploitation.
Refer to the Beego project's official website and GitHub repository for updates and security advisories related to CVE-2025-30223.
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