dbarzin mercator up to 2026.02.21 cross site scripting

Summaryinfo

A vulnerability was found in dbarzin mercator up to 2026.02.21. It has been declared as problematic. The affected element is an unknown function. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2026-27639. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in dbarzin mercator up to 2026.02.21 and classified as problematic. 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. CVE summarizes:

Mercator is an open source web application designed to enable mapping of information systems. A stored Cross-Site Scripting (XSS) vulnerability exists in Mercator prior to version 2026.02.22 due to the use of unescaped Blade directives (`{!! !!}`) in display templates. An authenticated user with the User role can inject arbitrary JavaScript payloads into fields such as "contact point" when creating or editing entities. The payload is then executed in the browser of any user who views the affected page, including administrators. Version 2026.02.22 fixes the vulnerability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-27639 since 02/20/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 2026.02.22 eliminates this vulnerability. Applying the patch 839d231399944e43a865198262e96e0218252cc3 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• dbarzin

Name

• mercator

Version

• 2026.02.0
• 2026.02.1
• 2026.02.2
• 2026.02.3
• 2026.02.4
• 2026.02.5
• 2026.02.6
• 2026.02.7
• 2026.02.8
• 2026.02.9
• 2026.02.10
• 2026.02.11
• 2026.02.12
• 2026.02.13
• 2026.02.14
• 2026.02.15
• 2026.02.16
• 2026.02.17
• 2026.02.18
• 2026.02.19
• 2026.02.20
• 2026.02.21

License

• open-source

Website

• Product: https://github.com/dbarzin/mercator/

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