high CVSS 7.3

CVE-2024-45799·PHP vulnerability

FluxCP is a web-based Control Panel for rAthena servers written in PHP. A javascript injection is possible via venders/buyers list pages and shop names, that are currently not sanitized. This allows executing arbitrary javascript code on the user's browser just by visiting the shop pages. As a result all logged in to fluxcp users can have their session info stolen. This issue has been addressed in release version 1.3. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity
high
Software
PHP
Fixed in
1.3.0
Published
2024-09-16

Affected versions

Until: 1.3.0

Fixed in: 1.3.0

How to fix this CVE

FluxCP versions prior to 1.3.0 contain a stored cross-site scripting vulnerability in vendor/buyer list pages and shop names that allows attackers to inject malicious JavaScript. Upgrade FluxCP to version 1.3.0 or later to apply input sanitization controls that prevent script injection. Verify that all PHP dependencies are updated and perform a full application deployment to ensure the patched code is in place.

sudo dnf update php php-cli php-common php-json php-mbstring php-mysql php-xml

Defensia detects this vulnerability

What an exploitation attempt looks like

Sample log line indicative of exploitation attempts:

POST|GET /venders/|/buyers/.*(['"])?(script|onerror|onclick|onload|eval|constructor).*(['"])?|%3Cscript|javascript:|alert\(|document\.cookie

WAF mitigation (if patching is not yet possible)

Add this rule to your WAF to block exploitation attempts while you schedule the patch. 

Configure WAF rules to block requests to /venders/ and /buyers/ endpoints that contain HTML/JavaScript metacharacters or event handlers in query parameters and POST data; implement Content Security Policy (CSP) headers with script-src 'self' to prevent inline script execution; enable HTML entity encoding on all output from shop name and vendor/buyer list fields

How to check if you are affected

  1. Step 1: Check PHP version with `php -v` and verify FluxCP version in `/path/to/fluxcp/VERSION` or application configuration file
  2. Step 2: Query the database for shop names and vendor listings with `SELECT name FROM shops; SELECT name FROM vendors;` to inspect for suspicious script tags or event handlers
  3. Step 3: Search web server access logs for requests to `/venders/` or `/buyers/` endpoints with URL-encoded script payloads using `grep -i 'venders\|buyers' /var/log/apache2/access.log | grep -i '%3Cscript\|onerror\|onclick'`
  4. Step 4: Verify the patched version is deployed by checking the GitHub release tag in your FluxCP installation with `git describe --tags` or reviewing the CHANGELOG for version 1.3.0 or later

FAQ

What is CVE-2024-45799?

CVE-2024-45799 is a stored cross-site scripting (XSS) vulnerability in FluxCP's vendor and buyer list pages, where unsanitized user input allows attackers to inject and execute malicious JavaScript code in the browsers of logged-in administrators and users.

Is CVE-2024-45799 being actively exploited?

No, there are currently no reports of active exploitation or public exploit code available for CVE-2024-45799, though the vulnerability poses a significant risk to session security if left unpatched.

What versions of FluxCP are affected by CVE-2024-45799?

All FluxCP versions prior to 1.3.0 are vulnerable; version 1.3.0 and later contain the necessary input sanitization fixes.

How do I check if my server is vulnerable to CVE-2024-45799?

Run `grep -r 'version' /path/to/fluxcp/` to identify your FluxCP version, then compare against the fixed version 1.3.0; versions below 1.3.0 are vulnerable.

Does Defensia detect CVE-2024-45799?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If PHP or FluxCP is installed on a monitored server, CVE-2024-45799 will appear in your dashboard with remediation steps.

Related PHP CVEs

CVE-2026-28289CVSS 10FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. A patch bypass vulnerability for CVE-2026-27636 in FreeScout 1.8.206 and earlier allows any authenticated user with file upload permissions to achieve Remote Code Execution (RCE) on the server by uploading a malicious .htaccess file using a zero-width space character prefix to bypass the security check. The vulnerability exists in the sanitizeUploadedFileName() function in app/Http/Helper.php. The function contains a Time-of-Check to Time-of-Use (TOCTOU) flaw where the dot-prefix check occurs before sanitization removes invisible characters. This vulnerability is fixed in 1.8.207.
CVE-2025-46348CVSS 10YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the request to commence a site backup can be performed and downloaded without authentication. The archives are created with a predictable filename, so a malicious user could create and download an archive without being authenticated. This could result in a malicious attacker making numerous requests to create archives and fill up the file system, or by downloading the archive which contains sensitive site information. This issue has been patched in version 4.5.4.
CVE-2025-47916CVSS 10Invision Community 5.0.0 before 5.0.7 allows remote code execution via crafted template strings to themeeditor.php. The issue lies within the themeeditor controller (file: /applications/core/modules/front/system/themeeditor.php), where a protected method named customCss can be invoked by unauthenticated users. This method passes the value of the content parameter to the Theme::makeProcessFunction() method; hence it is evaluated by the template engine. Accordingly, this can be exploited by unauthenticated attackers to inject and execute arbitrary PHP code by providing crafted template strings.
CVE-2025-25174CVSS 10Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in beeteam368 BeeTeam368 Extensions beeteam368-extensions allows PHP Local File Inclusion.This issue affects BeeTeam368 Extensions: from n/a through <= 1.9.4.
CVE-2025-62521CVSS 10ChurchCRM is an open-source church management system. Prior to version 5.21.0, a pre-authentication remote code execution vulnerability in ChurchCRM's setup wizard allows unauthenticated attackers to inject arbitrary PHP code during the initial installation process, leading to complete server compromise. The vulnerability exists in `setup/routes/setup.php` where user input from the setup form is directly concatenated into a PHP configuration template without any validation or sanitization. Any parameter in the setup form can be used to inject PHP code that gets written to `Include/Config.php`, which is then executed on every page load. This is more severe than typical authenticated RCE vulnerabilities because it requires no credentials and affects the installation process that administrators must complete. Version 5.21.0 patches the issue.

References

Track CVEs across your fleet automatically

Defensia scans your Linux servers and tells you exactly which ones are running vulnerable versions — including CVE-2024-45799. Free for 1 server.

Get started free