GHSA-v7gr-mqpj-wwh3 · Severity: high · Ecosystem: maven — CometVisu Backend for openHAB affected by SSRF/XSS
openHAB, a provider of open-source home automation software, has add-ons including the visualization add-on CometVisu. Prior to version 4.2.1, 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.
Conclusion & alert: CVE-2024-42467 is rated High Risk (69.2/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.77%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-12-29 | 1.31% | 1.77% | +0.46% |
| 2 | 2025-11-21 | 3.23% | 1.31% | -1.92% |
| 3 | 2025-11-18 | — | 3.23% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 3.1 | CRITICAL |
|
3.9 | 5.8 | [email protected] |
| 10.0 | 3.1 | CRITICAL |
|
3.9 | 6.0 | [email protected] |
GHSA-v7gr-mqpj-wwh3 · Severity: high · Ecosystem: maven — CometVisu Backend for openHAB affected by SSRF/XSS
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| openhab | openhab_web_interface | < 4.2.1 | cpe:2.3:a:openhab:openhab_web_interface:*:*:*:*:*:*:*:* |