Fabasoft Folio Client before 2026, a locally installed component that communicates with the Fabasoft browser extension via web messaging, does not restrict which web origins may invoke its functions by default. The registry value VALIDDOMAINS, which limits permitted origins, was optional and empty by default, resulting in all domains being trusted. As a consequence, any website visited by a user with the Folio Client and browser extension installed could invoke client functions, e.g., related to downloading documents, opening documents, and synchronizing files. The first fixed builds are Fabasoft Folio Client 2026 (Build 26.0.0.10) and Fabasoft Folio Client 2026 April Release (Build 26.4.0.76). This client is, for example, shipped with Fabasoft eGov-Suite.
History

Sat, 26 Sep 2026 23:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 24 Sep 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Fabasoft
Fabasoft folio Client
Vendors & Products Fabasoft
Fabasoft folio Client

Thu, 24 Sep 2026 04:45:00 +0000

Type Values Removed Values Added
Title Unrestricted Web Origin Access in Fabasoft Folio Client

Thu, 24 Sep 2026 03:45:00 +0000

Type Values Removed Values Added
Description Fabasoft Folio Client before 2026, a locally installed component that communicates with the Fabasoft browser extension via web messaging, does not restrict which web origins may invoke its functions by default. The registry value VALIDDOMAINS, which limits permitted origins, was optional and empty by default, resulting in all domains being trusted. As a consequence, any website visited by a user with the Folio Client and browser extension installed could invoke client functions, e.g., related to downloading documents, opening documents, and synchronizing files. The first fixed builds are Fabasoft Folio Client 2026 (Build 26.0.0.10) and Fabasoft Folio Client 2026 April Release (Build 26.4.0.76). This client is, for example, shipped with Fabasoft eGov-Suite.
Weaknesses CWE-346
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-24T03:30:19.439Z

Updated: 2026-09-26T22:51:20.557Z

Reserved: 2026-09-24T03:30:19.051Z

Link: CVE-2026-97155

cve-icon Vulnrichment

Updated: 2026-09-26T22:48:50.627Z

cve-icon NVD

Status : Deferred

Published: 2026-09-24T04:18:06.397

Modified: 2026-09-26T23:16:42.507

Link: CVE-2026-97155

cve-icon Redhat

No data.