CVE-2026-6743
WebSystems WebTOTUM Calendar cross site scripting
- State
- Published
- Severity
- 5.1 Medium
- Published
- Apr 21, 2026
- Updated
- Apr 21, 2026
- Reserved
- Apr 21, 2026
Description
A vulnerability has been found in WebSystems WebTOTUM 2026. This impacts an unknown function of the component Calendar. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.5 Low | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C | VulDB |
| 3.0 | 3.5 Low | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WebTOTUMWebSystems |
|
References
- VDB-358434 | WebSystems WebTOTUM Calendar cross site scriptingvdb-entry
- VDB-358434 | CTI Indicators (IOB, IOC, TTP)signaturepermissions-required
- Submit #794617 | WebSystems WebTOTUM (2026) Cross Site Scriptingthird-party-advisory
- https://olografix.org/acme/WebTOTUM-POC.gifexploit
- https://www.websys.eu/gestionale-online-in-cloud-per-pmi-callcenterpatch
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