CVE-2026-6743

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.

CVSS 4.0

2.0CVSS: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

CVSS 3.1

3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-26)

CWEs

CWE-79, CWE-94

Published

2026-04-21

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://olografix.org/acme/WebTOTUM-POC.gif
• https://vuldb.com/submit/794617
• https://vuldb.com/vuln/358434
• https://vuldb.com/vuln/358434/cti
• https://www.websys.eu/gestionale-online-in-cloud-per-pmi-callcenter

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