CVE-2026-6743
WebSystems WebTOTUM Calendar cross site scripting
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
Exploit maturity
Proof of concept
Public proof of concept exists, but not yet automated.
CVSS 5.1EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
21 Apr 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Affected products
WebSystems · WebTOTUMpublic PoCs found — 1
cve_referenceolografix.org/acme/WebTOTUM-POC.gifunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.