https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 03 Oct 2026 19:45:49 +0000 https://vulnerability.circl.lu/vuln/fkie_cve-2026-55566 <p>Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs processes attacker-controlled data from the /ext URL route in yamcs-web/src/main/webapp/projects/webapp/src/app/core/routes/extension.matcher.ts, extension.component.ts, and app.component.ts without checking registered plugin IDs before DOM rendering through innerHTML. A crafted URL can execute JavaScript when opened by a user. The script can read data available to the Yamcs web application and perform actions in the user context. This issue is fixed in versions 5.12.8 and 5.13.2.</p> <p>Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, Yamcs processes attacker-controlled data from the /ext URL route in yamcs-web/src/main/webapp/projects/webapp/src/app/core/routes/extension.matcher.ts, extension.component.ts, and app.component.ts without checking registered plugin IDs before DOM rendering through innerHTML. A crafted URL can execute JavaScript when opened by a user. The script can read data available to the Yamcs web application and perform actions in the user context. This issue is fixed in versions 5.12.8 and 5.13.2.</p> https://vulnerability.circl.lu/vuln/fkie_cve-2026-55566 https://vulnerability.circl.lu/vuln/ghsa-9272-wg2r-7xmx <p><strong>Affected:</strong> Maven: org.yamcs:yamcs-core</p> <p>**Attack type**: Unauthenticated remote **Impact**: Execution of arbitrary JavaScript in a user’s browser. **Affected components**: extension.matcher.ts:12, extension.component.ts:40, app.component.ts:134.</p> <p>Yamcs is vulnerable to cross-site scripting in the /ext URL endpoint. By inputting specially crafted code into the URL, an attacker can execute arbitrary JavaScript code in a user’s browser. This URL may be sent to a user via a phishing email. &lt;img width=&#34;940&#34; height=&#34;294&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/d886d65c-9bb5-4599-ac11-55db83aafc0e&#34; /&gt;</p> <p>Steps to Reproduce: 1. Start a Yamcs instance. 2. Insert the following URL into the browser and press enter (change ‘myproject’ to the name of your instance): ``` http://localhost:8090/ext/img%20src%3Dx%20onerror%3Dalert%281%29?c=myproject ``` 3. You will receive an alert with the number ‘1’ in it.</p> <p>Recommendations: 1. Use document.createElement instead of innerHTML in extension.component.ts. 2. Validate the extension against registered plugin IDs. 3. Enforce a strict custom-element-name regex before mounting.</p> <p><strong>Affected:</strong> Maven: org.yamcs:yamcs-core</p> <p>**Attack type**: Unauthenticated remote **Impact**: Execution of arbitrary JavaScript in a user’s browser. **Affected components**: extension.matcher.ts:12, extension.component.ts:40, app.component.ts:134.</p> <p>Yamcs is vulnerable to cross-site scripting in the /ext URL endpoint. By inputting specially crafted code into the URL, an attacker can execute arbitrary JavaScript code in a user’s browser. This URL may be sent to a user via a phishing email. &lt;img width=&#34;940&#34; height=&#34;294&#34; alt=&#34;image&#34; src=&#34;https://github.com/user-attachments/assets/d886d65c-9bb5-4599-ac11-55db83aafc0e&#34; /&gt;</p> <p>Steps to Reproduce: 1. Start a Yamcs instance. 2. Insert the following URL into the browser and press enter (change ‘myproject’ to the name of your instance): ``` http://localhost:8090/ext/img%20src%3Dx%20onerror%3Dalert%281%29?c=myproject ``` 3. You will receive an alert with the number ‘1’ in it.</p> <p>Recommendations: 1. Use document.createElement instead of innerHTML in extension.component.ts. 2. Validate the extension against registered plugin IDs. 3. Enforce a strict custom-element-name regex before mounting.</p> https://vulnerability.circl.lu/vuln/ghsa-9272-wg2r-7xmx