CVE-2025-8349

  • Published: 2025-10-20T10:15:33.827
  • Last modified: 1761075085

Summary

🛡️ Vulnerability overview CVE-2025-8349 Cross-site Scripting (XSS) stored vulnerability in Tawk Live Chat. This vulnerability allows an attacker to execute JavaScript code in the victim’s browser by uploading a malicious PDF with JavaScript payload through the chatbot. The PDF is stored by the application and subsequently displayed without proper sanitisation when other users access it. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user. 📊 Technical…

Technical details

    Severity & risk metrics

    Affected products & vendors

    Vendors not specified.

    Exploit & mitigation

    No vendor patch links provided.

    References & resources

    No references.


    🛡️ Vulnerability overview CVE-2025-8349

    Cross-site Scripting (XSS) stored vulnerability in Tawk Live Chat. This vulnerability allows an attacker to execute JavaScript code in the victim’s browser by uploading a malicious PDF with JavaScript payload through the chatbot. The PDF is stored by the application and subsequently displayed without proper sanitisation when other users access it. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.

    📊 Technical details

    • Severity:
    • CVSS:
    • Vendor:

    🧩 Affected products

    • Not specified.
    • Update to the latest available version
    • Monitor logs and network traffic
    • Apply least-privilege and segment the network

    🔗 References

    • No related CVEs.

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    Cross-site Scripting (XSS) stored vulnerability in Tawk Live Chat. This vulnerability allows an attacker to execute JavaScript code in the victim’s browser by uploading a malicious PDF with JavaScript payload through the chatbot. The PDF is stored by the application and subsequently displayed without proper sanitisation when other users access it. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.

    Related CVE by CWE

    No related CWE found.

    Top CVE for Vendor

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    Recently Exploited Similar Vulnerabilities

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    How to fix CVE-2025-8349

    CVE-2025-8349 is a unknown severity vulnerability affecting the affected product.

    Description: Summary 🛡️ Vulnerability overview CVE-2025-8349 Cross-site Scripting (XSS) stored vulnerability in Tawk Live Chat. This vulnerability allows an attacker to execute JavaScript code in the victim’s browser by uploading a malicious PDF with JavaScript payload through the chatbot. The PDF is stored by the application and subsequently displayed without proper sanitisation when other users access […]

    Exploit Difficulty: HARD
    ⏱️ Time to exploit: > 4 hours
    🛠️ Required skills: Advanced security expertise
    💰 Public exploits: Rare or not public

    How to Fix:

    1 Identify affected systems

    - Check if you're running the affected product

    2 Immediate actions

    - Update to the latest patched version
    - If patching is not immediately possible: restrict network exposure, apply least-privilege access

    3 Verification

    - Test the fix in a staging environment first
    - Review logs for signs of exploitation
    - Monitor for IOCs (Indicators of Compromise)

    4 Long-term prevention

    - Enable automatic security updates
    - Set up vulnerability monitoring
    - Review and harden security configurations

    Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/cross-site-scripting-xss-stored-tawk-live-chat

    Exploit Difficulty Assessment

    HARD
    ⏱️ Time to Exploit: > 4 hours
    🛠️ Skills Required: Advanced security expertise
    💰 Public Exploits: Rare or not public

    Vulnerability Timeline

    Oct 20, 2025
    Vulnerability Published

    CVE details first published to NVD database

    Jan 01, 1970
    Last Modified

    CVE details were updated

    Oct 28, 2025
    Imported to Database

    Added to this CVE tracking system

    Detection Rules & IOCs

    No specific detection rules generated for this vulnerability type.

    No vendor/product data available.