What’s Vulnerable › Vulnerabilities

CVE-2018-25249: MyBB My Arcade Plugin 1.3 Persistent XSS via Comment

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-04 · updated 2026-07-21
• Weakness: CWE-79

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.

Affected products

• MyBB My Arcade Plugin: 1.3

References

• https://community.mybb.com/mods.php?action=view&pid=411
• https://www.exploit-db.com/exploits/44186
• https://www.vulncheck.com/advisories/mybb-my-arcade-plugin-persistent-xss-via-comment

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