Cyber Resilience

CVE-2021-46827

Medium

Published: 13 July 2022

Published
13 July 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0067 71.8th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-46827 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Sync Oxygen Xml Author. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 28.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

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a user to type specific text in the WebHelp output search field.

CWE(s)
CWE-79

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

sync
oxygen publishing engine
22.1, 23.1 · ≤ 22.1
sync
oxygen xml author
22.1, 23.1 · ≤ 22.1
sync
oxygen xml developer
22.1, 23.1 · ≤ 22.1
sync
oxygen xml editor
22.1, 23.1 · ≤ 22.1
sync
oxygen xml webhelp
22.1, 23.1 · ≤ 22.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References