CometVisu Backend for openHAB affected by SSRF/XSS

Summary

CVE	CVE-2024-42467
State	PUBLISHED
Assigner	GitHub_M
Source Priority	CVE Program / NVD first with legacy fallback
Published	2024-08-12 13:38:34 UTC
Updated	2026-08-05 16:16:48 UTC
Description	openHAB, a provider of open-source home automation software, has add-ons including the visualization add-on CometVisu. In versions 3.4.0.M4 through 4.2.0,, the proxy endpoint of openHAB's CometVisu add-on can be accessed without authentication. This proxy-feature can be exploited as Server-Side Request Forgery (SSRF) to induce GET HTTP requests to internal-only servers, in case openHAB is exposed in a non-private network. Furthermore, this proxy-feature can also be exploited as a Cross-Site Scripting (XSS) vulnerability, as an attacker is able to re-route a request to their server and return a page with malicious JavaScript code. Since the browser receives this data directly from the openHAB CometVisu UI, this JavaScript code will be executed with the origin of the CometVisu UI. This allows an attacker to exploit call endpoints on an openHAB server even if the openHAB server is located in a private network. (e.g. by sending an openHAB admin a link that proxies malicious JavaScript.) This issue may lead up to Remote Code Execution (RCE) when chained with other vulnerabilities. Users should upgrade to version 4.2.1 of the CometVisu add-on of openHAB to receive a patch.

Primary CVSS: v3.1 10 CRITICAL from [email protected]

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

EPSS: 0.010350000 probability, percentile 0.606330000 (date 2026-08-09)

Problem Types: CWE-918 | NVD-CWE-noinfo | CWE-918 CWE-918: Server-Side Request Forgery (SSRF)

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	10	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`
3.1	[email protected]	Secondary	10	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N`
3.1	CNA	DECLARED	10	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N`

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

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

Type	Vendor	Product	Version	Update	Edition	Language
Application	Openhab	Openhab Web Interface	All	All	All	All

Source	Vendor	Product	Version	Platforms
CNA	Openhab	Openhab-webui	affected >= 3.4.0.M4, < 4.2.1	Not specified
ADP	Openhab	Openhab Webui	affected 4.2.1 custom	Not specified

Reference	Source	Link	Tags
github.com/openhab/openhab-webui/security/advisories/GHSA-v7gr-mqpj-wwh3	[email protected]	github.com	Third Party Advisory
github.com/openhab/openhab-webui/blob/1c03c60f84388b9d7da0231df2d4ebb1e1...	[email protected]	github.com	Product
github.com/openhab/openhab-webui/commit/531dabfa8311a50d2e740bf4f2b4f240...	[email protected]	github.com
github.com/openhab/openhab-webui/commit/630e8525835c698cf58856aa43782d92...	[email protected]	github.com	Patch
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.