Cross-site scripting in eLabFTW - #VU159623
Published: November 6, 2026
Vulnerability identifier: #VU159623
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an authenticated user to execute JavaScript in another user's browser through a malicious spreadsheet attachment.
The vulnerability exists due to stored formula injection in eLabFTW's Spreadsheet editor when it processes a crafted XLSX attachment opened by another user. An authenticated user can upload the crafted attachment and cause script execution when a victim opens it with the Spreadsheet editor.
Affected software
eLabFTW
Remediation
Install security update from vendor's website.
eLabFTW - update to 6.0.0