CVE-2025-66834

PoC —

CVSS 3.1

7.3 high

EPSS

<1%p23

Published

Dec 30, 2025 (Dec 30, 2025)

Modified

Aug 20, 2026

Description

A CSV Formula Injection vulnerability in TrueConf Server v5.5.2.10813 allows a normal user to inject malicious spreadsheet formulas into exported chat logs via crafted Display Name.

Vendors: trueconf
Products: trueconf server
Weakness: CWE-1236
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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