What is CVE-2018-25249?

CVE-2018-25249 is a medium-severity vulnerability in Mybb My Arcade Plugin, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-04.

How severe is CVE-2018-25249?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Mybb My Arcade Plugin

CVE-2018-25249

MyBB My Arcade Plugin 1.3 contains a persistent cross-site scripting vulnerability that allows authenticated users to inject malicious scripts through arcade game score comments. Attackers can add crafted HTML and JavaScript payloads in th…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (1.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Mybb My Arcade Plugin — versions 1.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

ExploitDB-44186 (exploit)
Product Reference (product)
VulnCheck Advisory: MyBB My Arcade Plugin 1.3 Persistent XSS via Comment (third-party-advisory)

Frequently asked questions

What is CVE-2018-25249?: CVE-2018-25249 is a medium-severity vulnerability in Mybb My Arcade Plugin, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-04.
How severe is CVE-2018-25249?: Medium severity. CVSS v3 base score is 6.4 out of 10.