SecuriTricks - CVE-2026-43915

Description

Coturn is a free open source implementation of TURN and STUN Server. Versions prior to 4.11.0 contain a stored cross-site scripting (XSS) vulnerability in the web-admin HTTPS interface. An attacker who can create a TURN allocation with a crafted USERNAME value can inject HTML/JavaScript that executes when an authenticated web-admin user views the TURN session list. In configurations using anonymous TURN access (--no-auth), this may be exploitable without TURN credentials. In authenticated deployments, exploitation requires valid TURN credentials or control over a provisioned username. This issue has been fixed in version 4.11.0.

Product(s) Impacted

Vendor	Product	Versions
Coturn	Coturn	<4.11.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	coturn	coturn	<4.11.0	/	/	/	/	/	/	/

References

https://github.com/coturn/coturn/releases/tag/4.11.0

https://github.com/coturn/coturn/security/advisories/GHSA-xxf5-9vj2-g84j

CVSS Score

5.4 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: CHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

View Vector String

Timeline

Published: June 18, 2026, 8:16 p.m.
Last Modified: June 18, 2026, 9:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-43915