The "Latest Posts on Profile" plugin 1.1 for MyBB has XSS because there is an added section in a user profile that displays that user's most recent posts without sanitizing the tsubject (aka thread subject) field.
https://www.exploit-db.com/exploits/44608/
http://packetstormsecurity.com/files/147575/MyBB-Latest-Posts-On-Profile-1.1-Cross-Site-Scripting.html
Source: Mitre, NVD
Published: 2018-05-11
Updated: 2026-06-17
Base Score: 3.5
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N
Severity: Low
Base Score: 5.4
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
EPSS: 0.00194