CVE-2018-25250

MyBB Last User's Threads in Profile Plugin 1.2 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts by crafting thread subjects with script tags. Attackers can create threads with script payloads in the subject field that execute when users visit the attacker's profile page.

Score

CVSS 3.1 7.2 High

Status

Analyzed - disclosure@vulncheck.com

Published

2026-04-04

Last modified

2026-05-24

Weaknesses

CWE-79

Affected products

• Last User Threads (Mybb)
• Mybb (Mybb)

References

• https://community.mybb.com/mods.php?action=view&pid=910
• https://www.exploit-db.com/exploits/44339
• https://www.vulncheck.com/advisories/mybb-last-user-s-threads-in-profile-plugin-persistent-xss