CVE-2021-46827: Sync Oxygen Publishing Engine

Medium severity, CVSS 6.1. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in Oxygen XML WebHelp before 22.1 build 2021082006 and 23.x before 23.1 build 2021090310. An XSS vulnerability in search terms proposals (in online documentation generated using Oxygen XML WebHelp) allows attackers to execute JavaScript by convincing a user to type specific text in the WebHelp output search field.

Affected products

• Sync Oxygen Publishing Engine: before 22.1 (fixed in 22.1); version 22.1 only; version 23.1 only
• Sync Oxygen XML Author: before 22.1 (fixed in 22.1); version 22.1 only; version 23.1 only
• Sync Oxygen XML Developer: before 22.1 (fixed in 22.1); version 22.1 only; version 23.1 only
• Sync Oxygen XML Editor: before 22.1 (fixed in 22.1); version 22.1 only; version 23.1 only
• Sync Oxygen XML Webhelp: before 22.1 (fixed in 22.1); version 22.1 only; version 23.1 only

Published 2022-07-13. Last modified 2026-06-17.