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.
Affected products
trueconf: trueconf server
References3
- github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66834/R… ExploitThird Party Advisory
- github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66834/R… ExploitThird Party Advisory
- trueconf.com Product
Metrics
- CVSS 3.1
-
7.3
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N - EPSS — exploit probability
- 0% percentile: 24 · as of 11 November 2026
- CWE
- CWE-1236
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.