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Description

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 the comment field that execute when other users view or edit the comment.

PUBLISHED Reserved 2026-04-04 | Published 2026-04-04 | Updated 2026-04-06 | Assigner VulnCheck




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

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

Product status

1.3
affected

Credits

0xB9 finder

References

www.exploit-db.com/exploits/44186 (ExploitDB-44186) exploit

community.mybb.com/mods.php?action=view&pid=411 (Product Reference) product

www.vulncheck.com/...rcade-plugin-persistent-xss-via-comment (VulnCheck Advisory: MyBB My Arcade Plugin 1.3 Persistent XSS via Comment) third-party-advisory

cve.org (CVE-2018-25249)

nvd.nist.gov (CVE-2018-25249)

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