# CVE-2026-72530: TrueConf Server code injection vulnerability

Source: https://junglewise.ai/threats/cve-2026-72530-trueconf-server-code-injection-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-19. Updated: 2026-09-24  
License: CC BY 4.0 with a link back

CVE-2026-72530 · Severity: critical · CVSS 9 · Exploited in the wild · Published 2026-08-19

TrueConf Server is a communication and collaboration platform that runs on enterprise servers. A critical vulnerability allows unauthenticated attackers on the network to inject malicious code that escapes the application's security sandbox and executes with full system privileges, potentially compromising the entire server and all data processed by it.

Technologies: [TrueConf Server](https://junglewise.ai/threats/technologies/trueconf-server). Vendors: [Trueconf](https://junglewise.ai/threats/vendors/trueconf).

## Quick answers

**Is CVE-2026-72530 exploited in the wild?** Yes. CVE-2026-72530 is known to be exploited in the wild, first recorded on 20 August 2026. Treat it as urgent.

**How severe is CVE-2026-72530?** Critical severity, with a CVSS score of 9, published 19 August 2026.

**Which products and versions are affected?** TrueConf Server.

**Is there a fix for CVE-2026-72530?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-72530 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-72530?** Check whether you run TrueConf Server. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

TrueConf Server is vulnerable to code injection via port 4307/TCP, which fails to properly sanitize or validate user-supplied script input. The vulnerability allows an unauthenticated remote attacker to craft a specially designed script that breaks out of the application's isolated execution environment and achieves arbitrary code execution on the host system. No authentication is required to exploit this vulnerability, and the attack is triggered over the network. An attacker can achieve complete system compromise, including privilege escalation, data exfiltration, and lateral movement. This vulnerability has been actively exploited in the wild.

## Affected products

- TrueConf Server

## Timeline

- 2026-08-20: disclosed
- exploited: Actively exploited in the wild

## Related threats

- [TrueConf Server missing authentication for critical function](https://junglewise.ai/threats/cve-2026-72529-trueconf-server-missing-authentication-for-critical-function)
- [TrueConf Server HTML injection in conference description](https://junglewise.ai/threats/cve-2025-66823-trueconf-server-html-injection-in-conference-description)
- [TrueConf Server CSV formula injection via Display Name](https://junglewise.ai/threats/cve-2025-66834-trueconf-server-csv-formula-injection-via-display-name)
- [TrueConf Server stored cross-site scripting in meeting location field](https://junglewise.ai/threats/cve-2025-66824-trueconf-server-stored-cross-site-scripting-in-meeting-location)