CVE-2025-62793: eLabFTW HTML / CSS Injection via Malicious SVG Upload Leads to Credential Theft / Clickjacking

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-27 · updated 2026-10-19
Weakness: CWE-79

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.

Affected products

elabftw: before 5.3.0

References

https://github.com/elabftw/elabftw/commit/09b95e38f82f041edac0dd6962c70499e2d8d8e2
https://github.com/elabftw/elabftw/security/advisories/GHSA-rq98-8jh9-684f

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