TI-2019-00563 Aliases CVE-2019-0798 GHSA-43cx-jhp3-2qcr

Cross-site scripting in Microsoft Skype for Business Server 2015

LOW 31CWE-79Published 2019-04-09 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A spoofing vulnerability exists when a Lync Server or Skype for Business Server does not properly sanitize a specially crafted request, aka 'Skype for Business and Lync Spoofing Vulnerability'.

Why it matters now

EPSS 0.02084 81st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microsoft	Skype for Business Server 2015	March 2019 Update	—	No fix listed	CNA
Microsoft	Microsoft Lync Server 2013	July 2018 Update	—	No fix listed	CNA

Skype for Business Server 2015 VendorMicrosoft Affected March 2019 Update Fixed in — No fix listed CNA
Microsoft Lync Server 2013 VendorMicrosoft Affected July 2018 Update Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:microsoft:lync_server:2013:::::::*	2013	Vulnerable	Microsoft
cpe:2.3:a:microsoft:skype_for_business_server:2015:::::::*	2015	Vulnerable	Microsoft

cpe:2.3:a:microsoft:lync_server:2013:*:*:*:*:*:*:* Versions 2013 Vulnerable ·Microsoft
cpe:2.3:a:microsoft:skype_for_business_server:2015:*:*:*:*:*:*:* Versions 2015 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-0798
2026-10-03 Alias added: GHSA-43cx-jhp3-2qcr

References

Patch 1

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0798

TI-2013-01140 Microsoft Communicator 2007 R2, Lync 2010, Lync 2010 Attendee, and Lync Server 2013 do… CVSS 2.0HIGH 9.3
TI-2014-01426 Cross-site scripting (XSS) vulnerability in the Web Components Server in Microsoft Lync… CVSS 2.0MEDIUM 4.3
TI-2014-03321 The Server in Microsoft Lync Server 2013 allows remote attackers to cause a denial of… CVSS 2.0MEDIUM 5.0
TI-2014-03319 The Response Group Service in Microsoft Lync Server 2010 and 2013 and the Core Components… CVSS 2.0MEDIUM 5.0
TI-2022-14751 Skype for Business and Lync Remote Code Execution Vulnerability CVSS 3.1HIGH 7.2
TI-2021-08239 Skype for Business and Lync Remote Code Execution Vulnerability CVSS 3.1HIGH 7.2

See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences