Summaryinfo

A vulnerability was found in Handlebars. It has been declared as problematic. This affects an unknown part. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2026-33916. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Handlebars. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-33916. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability scanner Nessus provides a plugin with the ID 304162 (Linux Distros Unpatched Vulnerability : CVE-2026-33916), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.7.9 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (304162). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Handlebars

Version

• 1.0
• 3.0.8
• 4.0.0
• 4.3.0
• 4.4.5
• 4.5.2
• 4.5.3
• 4.7.7

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