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[Cycode] Fix for SAST detections - Unsanitized user input in dynamic HTML insertion (XSS) - #5
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| document.getElementById("previewRetrieval").src = "data:image/png;base64," + result; | ||
| var base64String = "data:image/png;base64," + result; | ||
| var sanitizedBase64String = sanitizeHtml(base64String); | ||
| document.getElementById("previewRetrieval").src = sanitizedBase64String; |
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❗Cycode: SAST violation: 'Unsanitized user input in dynamic HTML insertion (XSS)'.
Severity: High
Description
Unsanitized user input in dynamic HTML insertion can lead to Cross-Site Scripting (XSS) attacks. This vulnerability arises when user-provided data is directly inserted into the DOM without proper sanitization, potentially allowing attackers to execute malicious scripts.
Cycode Remediation Guideline
✅ Do
- Do use an HTML sanitization library to clean user input before inserting it into the HTML. This step helps prevent XSS attacks by removing or neutralizing any potentially harmful scripts.
importsanitizeHtmlfrom'sanitize-html';consthtml=`<strong>${user.Input}</strong>`;document.body.innerHTML=sanitizeHtml(html);📋 References
🎥 Learning materials (by Secure Code Warrior)
Tell us how you wish to proceed using one of the following commands:
| Tag | Short Description |
|---|---|
| #cycode_sast_ignore_here <reason> | Ignore this violation — applies to this violation only |
| #cycode_ai_remediation | Request remediation guidance using Cycode AI |
| #cycode_sast_false_positive <reason> | Mark as false positive — applies to this violation only |
| document.getElementById("randomCatPicture").src = "data:image/png;base64," + result; | ||
| var base64String = "data:image/png;base64," + result; | ||
| var sanitizedBase64String = sanitizeHtml(base64String); | ||
| document.getElementById("randomCatPicture").src = sanitizedBase64String; |
There was a problem hiding this comment.
❗Cycode: SAST violation: 'Unsanitized user input in dynamic HTML insertion (XSS)'.
Severity: High
Description
Unsanitized user input in dynamic HTML insertion can lead to Cross-Site Scripting (XSS) attacks. This vulnerability arises when user-provided data is directly inserted into the DOM without proper sanitization, potentially allowing attackers to execute malicious scripts.
Cycode Remediation Guideline
✅ Do
- Do use an HTML sanitization library to clean user input before inserting it into the HTML. This step helps prevent XSS attacks by removing or neutralizing any potentially harmful scripts.
importsanitizeHtmlfrom'sanitize-html';consthtml=`<strong>${user.Input}</strong>`;document.body.innerHTML=sanitizeHtml(html);📋 References
🎥 Learning materials (by Secure Code Warrior)
Tell us how you wish to proceed using one of the following commands:
| Tag | Short Description |
|---|---|
| #cycode_sast_ignore_here <reason> | Ignore this violation — applies to this violation only |
| #cycode_ai_remediation | Request remediation guidance using Cycode AI |
| #cycode_sast_false_positive <reason> | Mark as false positive — applies to this violation only |
| document.getElementById("preview").src = "data:image/png;base64," + result; | ||
| var base64String = "data:image/png;base64," + result; | ||
| var sanitizedBase64String = sanitizeHtml(base64String); | ||
| document.getElementById("preview").src = sanitizedBase64String; |
There was a problem hiding this comment.
❗Cycode: SAST violation: 'Unsanitized user input in dynamic HTML insertion (XSS)'.
Severity: High
Description
Unsanitized user input in dynamic HTML insertion can lead to Cross-Site Scripting (XSS) attacks. This vulnerability arises when user-provided data is directly inserted into the DOM without proper sanitization, potentially allowing attackers to execute malicious scripts.
Cycode Remediation Guideline
✅ Do
- Do use an HTML sanitization library to clean user input before inserting it into the HTML. This step helps prevent XSS attacks by removing or neutralizing any potentially harmful scripts.
importsanitizeHtmlfrom'sanitize-html';consthtml=`<strong>${user.Input}</strong>`;document.body.innerHTML=sanitizeHtml(html);📋 References
🎥 Learning materials (by Secure Code Warrior)
Tell us how you wish to proceed using one of the following commands:
| Tag | Short Description |
|---|---|
| #cycode_sast_ignore_here <reason> | Ignore this violation — applies to this violation only |
| #cycode_ai_remediation | Request remediation guidance using Cycode AI |
| #cycode_sast_false_positive <reason> | Mark as false positive — applies to this violation only |
| document.getElementById("previewRemoveUserInput").src = "data:image/png;base64," + result; | ||
| var base64String = "data:image/png;base64," + result; | ||
| var sanitizedBase64String = sanitizeHtml(base64String); | ||
| document.getElementById("previewRemoveUserInput").src = sanitizedBase64String; |
There was a problem hiding this comment.
❗Cycode: SAST violation: 'Unsanitized user input in dynamic HTML insertion (XSS)'.
Severity: High
Description
Unsanitized user input in dynamic HTML insertion can lead to Cross-Site Scripting (XSS) attacks. This vulnerability arises when user-provided data is directly inserted into the DOM without proper sanitization, potentially allowing attackers to execute malicious scripts.
Cycode Remediation Guideline
✅ Do
- Do use an HTML sanitization library to clean user input before inserting it into the HTML. This step helps prevent XSS attacks by removing or neutralizing any potentially harmful scripts.
importsanitizeHtmlfrom'sanitize-html';consthtml=`<strong>${user.Input}</strong>`;document.body.innerHTML=sanitizeHtml(html);📋 References
🎥 Learning materials (by Secure Code Warrior)
Tell us how you wish to proceed using one of the following commands:
| Tag | Short Description |
|---|---|
| #cycode_sast_ignore_here <reason> | Ignore this violation — applies to this violation only |
| #cycode_ai_remediation | Request remediation guidance using Cycode AI |
| #cycode_sast_false_positive <reason> | Mark as false positive — applies to this violation only |
[Cycode] Fix for SAST detections - Unsanitized user input in dynamic HTML insertion (XSS)