CVE-2026-54611 InstantCMS has Remote Code Execution in package installer

InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Remote Code Execution RCE issue that allows remote authenticated attackers to execute any PHP code via the component installer. It is possible to upload a malicious component into the server, however, ...

CVE-2026-54611 InstantCMS has Remote Code Execution in package installer

InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Remote Code Execution RCE issue that allows remote authenticated attackers to execute any PHP code via the component installer. It is possible to upload a malicious component into the server, however, ...

CVE-2026-54611

InstantCMS , a free and open-source content management system, contains a Remote Code Execution vulnerability in its component installer in versions prior to 2.18.2 . A remote authenticated attacker can upload a malicious component; although the component is not formally installed, the uploaded P...

CVE-2026-54611 InstantCMS has Remote Code Execution in package installer

InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Remote Code Execution RCE issue that allows remote authenticated attackers to execute any PHP code via the component installer. It is possible to upload a malicious component into the server, however, ...

EUVD-2026-73561

InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Remote Code Execution RCE issue that allows remote authenticated attackers to execute any PHP code via the component installer. It is possible to upload a malicious component into the server, however, ...

PT-2026-87192

InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Remote Code Execution RCE issue that allows remote authenticated attackers to execute any PHP code via the component installer. It is possible to upload a malicious component into the server, however, ...

CVE-2026-81347: External Control of File Name or Path

The Frontend Admin by DynamiApps WordPress plugin before 3.29.13 does not properly validate a user-controllable directory path before deleting files within it, allowing unauthenticated attackers to delete index.php and .htaccess files outside the intended directory, including the WordPress root,...

CVE-2026-10821

The Yoast SEO Premium WordPress plugin before 27.6.1 does not sanitize control characters from redirect origins before writing them to the site's Apache configuration file when the file-based redirect mode is enabled, and the redirect-creation endpoint is reachable by users with only Author-level...

CVE-2026-10821 Yoast SEO Premium < 27.6.1 - Author+ Arbitrary .htaccess Directive Injection to RCE

The Yoast SEO Premium WordPress plugin before 27.6.1 does not sanitize control characters from redirect origins before writing them to the site's Apache configuration file when the file-based redirect mode is enabled, and the redirect-creation endpoint is reachable by users with only Author-level...

CVE-2026-10821 Yoast SEO Premium < 27.6.1 - Author+ Arbitrary .htaccess Directive Injection to RCE

The Yoast SEO Premium WordPress plugin before 27.6.1 does not sanitize control characters from redirect origins before writing them to the site's Apache configuration file when the file-based redirect mode is enabled, and the redirect-creation endpoint is reachable by users with only Author-level...

EUVD-2026-70033

The Yoast SEO Premium WordPress plugin before 27.6.1 does not sanitize control characters from redirect origins before writing them to the site's Apache configuration file when the file-based redirect mode is enabled, and the redirect-creation endpoint is reachable by users with only Author-level...

CVE-2026-10821

Yoast SEO Premium WordPress plugin before 27.6.1 fails to sanitize control characters from redirect origins before writing them to the site's Apache .htaccess file when file-based redirect mode is enabled. Because the redirect-creation endpoint is accessible to users with Author-level access, an ...

PT-2026-84717

The Yoast SEO Premium WordPress plugin before 27.6.1 does not sanitize control characters from redirect origins before writing them to the site's Apache configuration file when the file-based redirect mode is enabled, and the redirect-creation endpoint is reachable by users with only Author-level...

CVE-2026-10821: Improper Neutralization of Special Elements in Output Used by a Downstream Component

The Yoast SEO Premium WordPress plugin before 27.6.1 does not sanitize control characters from redirect origins before writing them to the site's Apache configuration file when the file-based redirect mode is enabled, and the redirect-creation endpoint is reachable by users with only Author-level...

WordPress W3 Total Cache plugin < 2.10.5 - Unauthenticated Arbitrary Directory File Write and .htaccess Overwrite via Path Traversal in the Page Cache Key vulnerability

Unauthenticated Arbitrary Directory File Write and .htaccess Overwrite via Path Traversal in the Page Cache Key vulnerability discovered by Jakub Herman in WordPress Plugin W3 Total Cache versions 2.10.5...

GHSA-VWG3-W8W3-PC79 Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems

Summary The default .htaccess shipped with Grav and the reference webserver-configs/htaccess.txt contains security rules that block direct HTTP access to sensitive file types .yaml, .yml, .php, .json, .twig, etc. under user/ and system/vendor/ directories. However, these rules lack the NC No Case...

Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems

Summary The default .htaccess shipped with Grav and the reference webserver-configs/htaccess.txt contains security rules that block direct HTTP access to sensitive file types .yaml, .yml, .php, .json, .twig, etc. under user/ and system/vendor/ directories. However, these rules lack the NC No Case...

Improper Handling of Case Sensitivity

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity in the .htaccess process on case-insensitive filesystems due to the lack of case-insensitive matching fo...

CVE-2026-62673

Grav is a file-based Web platform. Prior to 2.0.4, the Grav .htaccess and webserver-configs/htaccess.txt security rules omit the Apache NC flag and therefore compare sensitive directory and file-extension patterns case-sensitively. On a case-insensitive filesystem, an unauthenticated requester ca...

CVE-2026-62673 Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems

Grav is a file-based Web platform. Prior to 2.0.4, the Grav .htaccess and webserver-configs/htaccess.txt security rules omit the Apache NC flag and therefore compare sensitive directory and file-extension patterns case-sensitively. On a case-insensitive filesystem, an unauthenticated requester ca...