CVE-2026-34890 — MEDIUM (6.5)

Vulnerability 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.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-79

References

https://patchstack.com/database/wordpress/plugin/mstw-league-manager/vulnerabili

FAQ

What is CVE-2026-34890?

CVE-2026-34890 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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: fr...

How severe is CVE-2026-34890?

CVE-2026-34890 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-34890?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.