Home

Description

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.

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
HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:N/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

1.2
affected

Credits

0xB9 finder

References

www.exploit-db.com/exploits/44339 (ExploitDB-44339) exploit

community.mybb.com/mods.php?action=view&pid=910 (Product Reference) product

www.vulncheck.com/...hreads-in-profile-plugin-persistent-xss (VulnCheck Advisory: MyBB Last User's Threads in Profile Plugin 1.2 Persistent XSS) third-party-advisory

cve.org (CVE-2018-25250)

nvd.nist.gov (CVE-2018-25250)

Download JSON