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CVE-2026-21855: Improper Neutralization of Input During Web Page Generation

🗓️ 07 Jan 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Reflected XSS in Tarkov Data Manager toast notification system allows arbitrary JavaScript.

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-21855
7 Jan 202619:48
–circl
cnnvd
CNNVD
Tarkov Data Manager 跨站脚本漏洞
7 Jan 202600:00
–cnnvd
cve
CVE
CVE-2026-21855
7 Jan 202618:16
–cve
cvelist
Cvelist
CVE-2026-21855 Tarkov Data Manager has Unauthenticated Reflected XSS
7 Jan 202618:16
–cvelist
euvd
EUVD
EUVD-2026-1400
7 Jan 202618:16
–euvd
nvd
NVD
CVE-2026-21855
7 Jan 202619:15
–nvd
osv
OSV
CVE-2026-21855 Tarkov Data Manager has Unauthenticated Reflected XSS
7 Jan 202618:16
–osv
ptsecurity
Positive Technologies
PT-2026-2103
7 Jan 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-21855
9 Jan 202608:38
–redhatcve
vulnrichment
Vulnrichment
CVE-2026-21855 Tarkov Data Manager has Unauthenticated Reflected XSS
7 Jan 202618:16
–vulnrichment

Data

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03 Feb 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.16.1 - 9.3
EPSS0.00236
SSVC
0