CVE-2021-46827

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-07-13 · updated 2026-06-17
Weakness: CWE-79

Description

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; 22.1-2020061014, 22.1-2020072823, 22.1-2020100801, 22.1-2020121711, 23.1-2021040717, 23.1-2021060401 — fixed in 22.1
Sync Oxygen Xml Author: before 22.1; 22.1-2020061102, 22.1-2020072902, 22.1-2020100710, 22.1-2020121713, 23.1-2021030206, 23.1-2021040908 (+1) — fixed in 22.1
Sync Oxygen Xml Developer: before 22.1; 22.1-2020061102, 22.1-2020072902, 22.1-2020100710, 22.1-2020121713, 23.1-2021030206, 23.1-2021040908 (+1) — fixed in 22.1
Sync Oxygen Xml Editor: before 22.1; 22.1-2020061102, 22.1-2020072902, 22.1-2020100710, 22.1-2020121713, 23.1-2021030206, 23.1-2021040908 (+1) — fixed in 22.1
Sync Oxygen Xml Webhelp: before 22.1; 22.1-2020061014, 22.1-2020072412, 22.1-2020100208, 22.1-2020121713, 23.1-2021030210, 23.1-2021040711 (+1) — fixed in 22.1

How to fix

Upgrade to a fixed version: Sync Oxygen Publishing Engine 22.1; Sync Oxygen Xml Author 22.1; Sync Oxygen Xml Developer 22.1; Sync Oxygen Xml Editor 22.1; Sync Oxygen Xml Webhelp 22.1. Check the vendor advisory for mitigations.

References

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