CVE-2025-66834
HIGHCVSS 7.3/10EPSS 0.26%
Last modified
CVE-2025-66834 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. 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.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
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/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Trueconf | Server | 5.5.2.10813 |
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
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-66834?
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.
How severe is CVE-2025-66834?
CVE-2025-66834 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2025-66834?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2025-66834?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST