CVE-2025-66834

HighCVSS 7.3/10Last 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.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-1236

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66834/README.mdExploit, Third Party Advisory
https://trueconf.comProduct
https://github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66834/README.mdExploit, Third Party Advisory

Timeline

Published: Dec 30, 2025
Last modified: Aug 20, 2026
NVD status: Analyzed

Related CVEs from 2025

CVE-2025-668357.1TrueConf Client 8.5.2 is vulnerable to DLL hijacking via crafted wfapi.dll allowing local attackers to execute arbitrary code within the use CVE-2025-668376.8A file upload vulnerability in ARIS 10.0.23.0.3587512 allows attackers to execute arbitrary code via uploading a crafted PDF file/Malware CVE-2025-668386.5In Aris v10.0.23.0.3587512 and before, the file upload functionality does not enforce any rate limiting or throttling, allowing users to upl CVE-2025-668435.4grav before v1.7.49.5 has a Stored Cross-Site Scripting (Stored XSS) vulnerability in the page editing functionality. An authenticated low-p CVE-2025-668449.1In grav <1.7.49.5, a SSRF (Server-Side Request Forgery) vector may be triggered via Twig templates when page content is processed by Twig an CVE-2025-668456.1A reflected Cross-Site Scripting (XSS) vulnerability has been identified in TechStore version 1.0. The user_name endpoint reflects the id qu CVE-2025-668489.8JD Cloud NAS routers AX1800 (4.3.1.r4308 and earlier), AX3000 (4.3.1.r4318 and earlier), AX6600 (4.5.1.r4533 and earlier), BE6500 (4.4.1.r43 CVE-2025-66858.8ATEN eco DC Missing Authorization Privilege Escalation Vulnerability. This vulnerability allows remote attackers to escalate privileges on a CVE-2025-66865.4The Magic Buttons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's magic-button shortcode in CVE-2025-668612.5An issue was discovered in function d_unqualified_name in file cp-demangle.c in BinUtils 2.26 allowing attackers to cause a denial of servic CVE-2025-668627.5A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in BinUtils 2.26 allows attackers to cause a denial of service v CVE-2025-668637.5An issue was discovered in function d_discriminator in file cp-demangle.c in BinUtils 2.26 allows attackers to cause a denial of service via