Vulnerabilities

The template upload feature in Emlog Pro v2.6.9 has a path traversal vulnerability, allowing authenticated administrators to execute arbitrary PHP code. By uploading a malicious ZIP archive containing directory traversal sequences in filenames, an attacker can overwrite default template files or directly include malicious code files in the current template.

Emlog is an open source website building system. Prior to version 2.6.8, the backend upgrade interface accepts remote SQL and ZIP URLs via GET parameters. The server first downloads and executes the SQL file, then downloads the ZIP file and extracts it directly into the web root directory. This process does not validate a CSRF token. Therefore, an attacker only needs to trick an authenticated administrator into visiting a malicious link to achieve arbitrary SQL execution and arbitrary file write. This issue has been patched in version 2.6.8.

Emlog is an open source website building system. In 2.6.6 and earlier, the delete_async action (asynchronous delete) lacks a call to LoginAuth::checkToken(), enabling CSRF attacks.

Emlog is an open source website building system. emlog v2.6.1 and earlier exposes a REST API endpoint (/index.php?rest-api=upload) for media file uploads. The endpoint fails to implement proper validation of file types, extensions, and content, allowing authenticated attackers (with a valid API key or admin session cookie) to upload arbitrary files (including malicious PHP scripts) to the server. An attacker can obtain the API key either by gaining administrator access to enable the REST API setting, or via information disclosure vulnerabilities in the application. Once uploaded, the malicious PHP file can be executed to gain remote code execution (RCE) on the target server, leading to full server compromise.

Emlog is an open source website building system. Versions up to and including 2.5.19 are vulnerable to server-side Out-of-Band (OOB) requests / SSRF via uploaded SVG files. An attacker can upload a crafted SVG to http[:]//emblog/admin/media[.]php which contains external resource references. When the server processes/renders the SVG (thumbnailing, preview, or sanitization), it issues an HTTP request to the attacker-controlled host. Impact: server-side SSRF/OOB leading to internal network probing and potential metadata/credential exposure. As of time of publication, no known patched versions are available.

Emlog Pro 2.5.20 has an arbitrary file deletion vulnerability. This vulnerability stems from the admin/template.php component and the admin/plugin.php component. They fail to perform path verification and dangerous code filtering for deletion parameters, allowing attackers to exploit this feature for directory traversal.

Emlog is an open source website building system. In version 2.5.23, Emlog Pro is vulnerable to a session verification code error due to a clearing logic error. This means the verification code could be reused anywhere an email verification code is required. This issue has been fixed in commit 1f726df.

Emlog is an open source website building system. Emlog Pro versions 2.5.19 and earlier are vulnerable to Cross‑Site Request Forgery (CSRF) on the password change endpoint. An attacker can trick a logged‑in administrator into submitting a crafted POST request to change the admin password without consent. Impact is account takeover of privileged users. Severity: High. As of time of publication, no known patched versions exist.

Emlog is an open source website building system. A cross-site scripting (XSS) vulnerability in emlog up to and including version 2.5.22 allows authenticated remote attackers to inject arbitrary web script or HTML via the file upload functionality. As an authenticated user it is possible to upload .svg file that contains JavaScript code that is later being executed. Commit 052f9c4226b2c0014bcd857fec47677340b185b1 fixes the issue.

A stored Cross-Site Scripting (XSS) vulnerability has been discovered in Emlog Pro 2.5.19. The vulnerability exists due to insufficient validation of SVG file uploads in the /admin/media.php component, allowing attackers to upload malicious SVG files containing JavaScript code that executes when the uploaded file is viewed.

A security vulnerability has been detected in Emlog Pro up to 2.5.18. This affects an unknown function of the file /admin/blogger.php?action=update_avatar. Such manipulation of the argument image leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Emlog Pro V2.5.7 is vulnerable to Unrestricted Upload of File with Dangerous Type via /emlog/admin/plugin.php?action=upload_zip

Emlog is an open source website building system. A cross-site scripting (XSS) vulnerability in emlog up to and including pro-2.5.17 allows remote attackers to inject arbitrary web script or HTML via the keyword parameter. Due to lack of sanitization it is possible to inject HTML/JS code into keyword parameter. If one persuades an user into clicking into prepared link it is possible to execute any JS code in admin's browser. As of time of publication, no known patched versions exist.

A vulnerability was found in Emlog up to 2.5.7 and classified as problematic. This issue affects some unknown processing of the file /admin/article.php. The manipulation of the argument active_post leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

A vulnerability has been found in Emlog Pro 2.5.11 and classified as critical. This vulnerability affects unknown code of the file /include/controller/api_controller.php. The manipulation of the argument tag leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

Emlog is an open source website building system. Emlog Pro prior to version 2.5.10 contains a file upload vulnerability. The store.php component contains a critical security flaw where it fails to properly validate the contents of remotely downloaded ZIP plugin files. This insufficient validation allows attackers to execute arbitrary code on the vulnerable system. Version 2.5.10 contains a patch for the issue.

Emlog is an open source website building system. Emlog Pro versions pro-2.5.7 and pro-2.5.8 contain an SQL injection vulnerability. `search_controller.php` does not use addslashes after urldecode, allowing the preceeding addslashes to be bypassed by URL double encoding. This could result in potential leakage of sensitive information from the user database. Version pro-2.5.9 fixes the issue.

An arbitrary file upload vulnerability in the component /views/plugin.php of emlog pro v2.5.7 allows attackers to execute arbitrary code via uploading a crafted PHP file.

An arbitrary file upload vulnerability in the component admin\plugin.php of Emlog Pro v2.5.3 allows attackers to execute arbitrary code via uploading a crafted Zip file.

A vulnerability classified as problematic was found in Emlog Pro up to 2.4.3. This vulnerability affects unknown code of the file /admin/article.php of the component Subpage Handler. The manipulation leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

A vulnerability, which was classified as problematic, has been found in Emlog Pro up to 2.4.1. Affected by this issue is some unknown functionality of the file /admin/link.php. The manipulation of the argument siteurl/icon leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability classified as problematic has been found in Emlog Pro up to 2.4.1. Affected is an unknown function of the file /admin/store.php. The manipulation of the argument tag leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.