https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Fri, 09 Oct 2026 05:47:06 +0000 https://cve.radiocsirt.org/vuln/cnvd-2025-30343 cnvd-2025-30343 https://cve.radiocsirt.org/vuln/cnvd-2025-30343 https://cve.radiocsirt.org/vuln/euvd-2026-262344 EUVD-2026-262344 https://cve.radiocsirt.org/vuln/euvd-2026-262344 https://cve.radiocsirt.org/vuln/fkie_cve-2025-66305 <p>Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a Denial of Service (DoS) vulnerability was identified in the &#34;Languages&#34; submenu of the Grav admin configuration panel (/admin/config/system). Specifically, the Supported parameter fails to properly validate user input. If a malformed value is inserted—such as a single forward slash (/) or an XSS test string—it causes a fatal regular expression parsing error on the server. This leads to application-wide failure due to the use of the preg_match() function with an improperly constructed regular expression, resulting in an error. Once triggered, the site becomes completely unavailable to all users. This vulnerability is fixed in 1.8.0-beta.27.</p> <p>Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a Denial of Service (DoS) vulnerability was identified in the &#34;Languages&#34; submenu of the Grav admin configuration panel (/admin/config/system). Specifically, the Supported parameter fails to properly validate user input. If a malformed value is inserted—such as a single forward slash (/) or an XSS test string—it causes a fatal regular expression parsing error on the server. This leads to application-wide failure due to the use of the preg_match() function with an improperly constructed regular expression, resulting in an error. Once triggered, the site becomes completely unavailable to all users. This vulnerability is fixed in 1.8.0-beta.27.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2025-66305 https://cve.radiocsirt.org/vuln/ghsa-m8vh-v6r6-w7p6 <p><strong>Affected:</strong> Packagist: getgrav/grav</p> <p>**Endpoint**: `admin/config/system` **Submenu**: `Languages` **Parameter**: `Supported` **Application**: Grav v 1.7.48</p> <p>---</p> <p>## Summary</p> <p>A Denial of Service (DoS) vulnerability was identified in the **&#34;Languages&#34;** submenu of the Grav **admin configuration panel** (`/admin/config/system`). Specifically, the `Supported` parameter fails to properly validate user input. If a malformed value is inserted—such as a single forward slash (`/`) or an XSS test string—it causes a fatal regular expression parsing error on the server.</p> <p>This leads to application-wide failure due to the use of the `preg_match()` function with an **improperly constructed regular expression**, resulting in the following error:</p> <p>`preg_match(): Unknown modifier &#39;o&#39; File: /system/src/Grav/Common/Language/Language.php line 244`</p> <p>Once triggered, the site becomes completely unavailable to all users.</p> <p>---</p> <p>## Details</p> <p>- **Vulnerable Endpoint**: `POST /admin/config/system` - **Submenu**: `Languages` - **Parameter**: `Supported`</p> <p>The application dynamically constructs a regular expression using the contents of the `Supported` field without escaping the input using `preg_quote()` or proper validation. This allows attackers to inject invalid syntax into the regex engine, crashing the application during language resolution.</p> <p>**Stack trace excerpt**:</p> <p>`Whoops \ Exception \ ErrorException (E_WARNING) preg_match(): Unknown modifier &#39;o&#39; /system/src/Grav/Common/Language/Language.php244`</p> <p>---</p> <p>## Proof…</p> <p><strong>Affected:</strong> Packagist: getgrav/grav</p> <p>**Endpoint**: `admin/config/system` **Submenu**: `Languages` **Parameter**: `Supported` **Application**: Grav v 1.7.48</p> <p>---</p> <p>## Summary</p> <p>A Denial of Service (DoS) vulnerability was identified in the **&#34;Languages&#34;** submenu of the Grav **admin configuration panel** (`/admin/config/system`). Specifically, the `Supported` parameter fails to properly validate user input. If a malformed value is inserted—such as a single forward slash (`/`) or an XSS test string—it causes a fatal regular expression parsing error on the server.</p> <p>This leads to application-wide failure due to the use of the `preg_match()` function with an **improperly constructed regular expression**, resulting in the following error:</p> <p>`preg_match(): Unknown modifier &#39;o&#39; File: /system/src/Grav/Common/Language/Language.php line 244`</p> <p>Once triggered, the site becomes completely unavailable to all users.</p> <p>---</p> <p>## Details</p> <p>- **Vulnerable Endpoint**: `POST /admin/config/system` - **Submenu**: `Languages` - **Parameter**: `Supported`</p> <p>The application dynamically constructs a regular expression using the contents of the `Supported` field without escaping the input using `preg_quote()` or proper validation. This allows attackers to inject invalid syntax into the regex engine, crashing the application during language resolution.</p> <p>**Stack trace excerpt**:</p> <p>`Whoops \ Exception \ ErrorException (E_WARNING) preg_match(): Unknown modifier &#39;o&#39; /system/src/Grav/Common/Language/Language.php244`</p> <p>---</p> <p>## Proof…</p> https://cve.radiocsirt.org/vuln/ghsa-m8vh-v6r6-w7p6