CVE-2025-12269
BaseFortify
Publication date: 2025-10-27
Last updated on: 2026-04-29
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| learnhouse | learnhouse | to 2025-09-21 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
| CWE-94 | The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-12269 involves two main vulnerabilities in the LearnHouse application related to its file upload functionality. First, it allows Stored Cross-Site Scripting (XSS) attacks by accepting SVG files without sanitizing their content, enabling attackers to embed malicious JavaScript that executes in users' browsers when they view the images. Second, the application lacks proper server-side validation of uploaded file types, allowing attackers to upload arbitrary files such as Python scripts. These files can be stored in web-accessible locations and potentially executed on the server, leading to Remote Code Execution (RCE). Together, these flaws enable attackers to execute arbitrary scripts in users' browsers and potentially gain control over the server hosting the application. [1, 2]
How can this vulnerability impact me? :
This vulnerability can impact you by allowing attackers to execute arbitrary JavaScript code in the browsers of users who view malicious SVG images, which can lead to session hijacking, credential theft, or delivery of phishing payloads. Additionally, attackers may upload malicious files like Python scripts to the server, potentially leading to Remote Code Execution (RCE). This can result in server compromise, data exfiltration, system takeover, and lateral movement within your network, posing significant security risks. [1, 2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection can involve checking for the presence of malicious SVG files with embedded JavaScript or unauthorized file types such as Python scripts uploaded to the server. You can scan the upload directories for SVG files containing suspicious event handlers like 'onload' or '<script>' tags. For example, use grep commands to find SVG files with JavaScript: `grep -r -i -E '<script|onload|onerror' /path/to/uploads/*.svg`. Additionally, list files with suspicious extensions like .py in upload directories: `find /path/to/uploads -type f -name '*.py'`. Monitoring HTTP requests for file uploads with unusual MIME types or extensions can also help detect exploitation attempts. [2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include implementing strict server-side validation of uploaded files by checking MIME types and file extensions, and sanitizing SVG files to remove any embedded JavaScript or event handlers. Restrict allowed file types to safe image formats only. Additionally, remove any existing malicious files such as SVGs with scripts or unauthorized files like Python scripts from upload directories. If possible, apply any available patches or updates from the vendor. As a temporary measure, restrict or disable file uploads until proper validation and sanitization are in place. [2]