ellite Wallos up to 4.6.1 passwordreset.php htmlspecialchars token/email cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in ellite Wallos up to 4.6.1. This affects the function htmlspecialchars of the file passwordreset.php. Executing a manipulation of the argument token/email can lead to cross site scripting. This vulnerability appears as CVE-2026-30841. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in ellite Wallos up to 4.6.1. This vulnerability affects the function htmlspecialchars of the file passwordreset.php. The manipulation of the argument token/email with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, passwordreset.php outputs $_GET["token"] and $_GET["email"] directly into HTML input value attributes using <?= $token ?> and <?= $email ?> without calling htmlspecialchars(). This allows reflected XSS by breaking out of the attribute context. This issue has been patched in version 4.6.2.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-30841 since 03/05/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:passwordreset.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 4.6.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch e8a513591dbbf885966e2ef55c38622785b9060d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-10121). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• ellite

Name

• Wallos

Version

• 4.6.0
• 4.6.1

License

• open-source

Website

• Product: https://github.com/ellite/Wallos/

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Once again VulDB remains the best source for vulnerability data.

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