https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 05 Oct 2026 15:06:13 +0000 https://cve.radiocsirt.org/vuln/bdu:2026-06150 bdu:2026-06150 https://cve.radiocsirt.org/vuln/bdu:2026-06150 https://cve.radiocsirt.org/vuln/euvd-2026-275154 EUVD-2026-275154 https://cve.radiocsirt.org/vuln/euvd-2026-275154 https://cve.radiocsirt.org/vuln/fkie_cve-2026-26022 <p>Gogs is an open source self-hosted Git service. Prior to version 0.14.2, a stored cross-site scripting (XSS) vulnerability exists in the comment and issue description functionality. The application&#39;s HTML sanitizer explicitly allows data: URI schemes, enabling authenticated users to inject arbitrary JavaScript execution via malicious links. This issue has been patched in version 0.14.2.</p> <p>Gogs is an open source self-hosted Git service. Prior to version 0.14.2, a stored cross-site scripting (XSS) vulnerability exists in the comment and issue description functionality. The application&#39;s HTML sanitizer explicitly allows data: URI schemes, enabling authenticated users to inject arbitrary JavaScript execution via malicious links. This issue has been patched in version 0.14.2.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-26022 https://cve.radiocsirt.org/vuln/ghsa-xrcr-gmf5-2r8j <p><strong>Affected:</strong> Go: gogs.io/gogs</p> <p>### Summary A Stored Cross-site Scripting (XSS) vulnerability exists in the comment and issue description functionality. The application&#39;s HTML sanitizer explicitly allows `data:` URI schemes, enabling authenticated users to inject arbitrary JavaScript execution via malicious links.</p> <p>### Details The vulnerability is located in `internal/markup/sanitizer.go`. The application uses the `bluemonday` HTML sanitizer but explicitly weakens the security policy by allowing the `data` URL scheme:</p> <p>```go // internal/markup/sanitizer.go func NewSanitizer() { sanitizer.init.Do(func() { // ... // Data URLs sanitizer.policy.AllowURLSchemes(&#34;data&#34;) // ... }) } ```</p> <p>While the Markdown renderer rewrites relative links (mitigating standard Markdown `[link](data:...)` attacks), Gogs supports **Raw HTML** input. Raw HTML anchor tags bypass the Markdown parser&#39;s link rewriting and are processed directly by the sanitizer. Since the sanitizer is configured to allow `data:` URIs, payloads like `&lt;a href=&#34;data:text/html...&#34;&gt;` are rendered as-is.</p> <p>### PoC 1. Create a file named `exploit.md` in a repository. 2. Add the following content (Raw HTML): ```html &lt;a href=&#34;data:text/html;base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4=&#34;&gt;Click me for XSS&lt;/a&gt; ``` 3. Commit and push the file. 4. Navigate to the file in the Gogs web interface. 5. Click the &#34;Click me for XSS&#34; link. 6. **Result:** An alert box with &#34;XSS&#34; appears, executing the JavaScript payloa…</p> <p><strong>Affected:</strong> Go: gogs.io/gogs</p> <p>### Summary A Stored Cross-site Scripting (XSS) vulnerability exists in the comment and issue description functionality. The application&#39;s HTML sanitizer explicitly allows `data:` URI schemes, enabling authenticated users to inject arbitrary JavaScript execution via malicious links.</p> <p>### Details The vulnerability is located in `internal/markup/sanitizer.go`. The application uses the `bluemonday` HTML sanitizer but explicitly weakens the security policy by allowing the `data` URL scheme:</p> <p>```go // internal/markup/sanitizer.go func NewSanitizer() { sanitizer.init.Do(func() { // ... // Data URLs sanitizer.policy.AllowURLSchemes(&#34;data&#34;) // ... }) } ```</p> <p>While the Markdown renderer rewrites relative links (mitigating standard Markdown `[link](data:...)` attacks), Gogs supports **Raw HTML** input. Raw HTML anchor tags bypass the Markdown parser&#39;s link rewriting and are processed directly by the sanitizer. Since the sanitizer is configured to allow `data:` URIs, payloads like `&lt;a href=&#34;data:text/html...&#34;&gt;` are rendered as-is.</p> <p>### PoC 1. Create a file named `exploit.md` in a repository. 2. Add the following content (Raw HTML): ```html &lt;a href=&#34;data:text/html;base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4=&#34;&gt;Click me for XSS&lt;/a&gt; ``` 3. Commit and push the file. 4. Navigate to the file in the Gogs web interface. 5. Click the &#34;Click me for XSS&#34; link. 6. **Result:** An alert box with &#34;XSS&#34; appears, executing the JavaScript payloa…</p> https://cve.radiocsirt.org/vuln/ghsa-xrcr-gmf5-2r8j https://cve.radiocsirt.org/vuln/wid-sec-w-2026-0623 <p>Ein Angreifer kann mehrere Schwachstellen in Gogs ausnutzen, um Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen oder vertrauliche Informationen offenzulegen.</p> <p>Ein Angreifer kann mehrere Schwachstellen in Gogs ausnutzen, um Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen oder vertrauliche Informationen offenzulegen.</p> https://cve.radiocsirt.org/vuln/wid-sec-w-2026-0623