CVE-2026-6743

WebSystems WebTOTUM Calendar cross site scripting

LOW
3.5
CVSS Score
Published: April 21, 2026 at 04:30 PM UTC
Updated: October 26, 2026 at 10:10 PM UTC
1 product affected across 1 vendorWebTOTUM

Using WebTOTUM by WebSystems?

Get instant alerts when new vulnerabilities affect WebTOTUM - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
LOW3.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

VDB Entry
Source: cverecord
https://vuldb.com/vuln/358434
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/358434/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/794617

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.5LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-94

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card