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Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Mark O’Donnell MSTW League Manager allows DOM-Based XSS.This issue affects MSTW League Manager: from n/a through 2.10.

PUBLISHED Reserved 2026-03-31 | Published 2026-04-02 | Updated 2026-04-02 | Assigner Patchstack




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

Any version
affected

Credits

Conor Sullivan | Patchstack Bug Bounty Program finder

References

patchstack.com/...site-scripting-xss-vulnerability?_s_id=cve vdb-entry

cve.org (CVE-2026-34890)

nvd.nist.gov (CVE-2026-34890)

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