CVE-2018-25247

MyBB Like Plugin 3.0.0 contains a cross-site scripting vulnerability that allows attackers to inject malicious scripts by creating posts or threads with unvalidated subject content. Attackers can craft post subjects containing script tags that execute when other users view the attacker's profile, where liked posts are displayed without sanitization.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://community.mybb.com/mods.php?action=view&pid=360	Product
https://www.exploit-db.com/exploits/45179	Exploit VDB Entry
https://www.vulncheck.com/advisories/mybb-like-plugin-cross-site-scripting-via-user-profiles	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mybb:thankyou\/like_system:*:*:*:*:*:mybb:*:*

History

20 Apr 2026, 14:30

Type	Values Removed	Values Added
References	~~() https://community.mybb.com/mods.php?action=view&pid=360 -~~	() https://community.mybb.com/mods.php?action=view&pid=360 - Product
References	~~() https://www.exploit-db.com/exploits/45179 -~~	() https://www.exploit-db.com/exploits/45179 - Exploit, VDB Entry
References	~~() https://www.vulncheck.com/advisories/mybb-like-plugin-cross-site-scripting-via-user-profiles -~~	() https://www.vulncheck.com/advisories/mybb-like-plugin-cross-site-scripting-via-user-profiles - Third Party Advisory
First Time		Mybb thankyou\/like System Mybb
CPE		cpe:2.3:a:mybb:thankyou\/like_system::::::mybb::*

04 Apr 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-04 14:16

Updated : 2026-04-20 14:30

NVD link : CVE-2018-25247

Mitre link : CVE-2018-25247

CVE.ORG link : CVE-2018-25247

JSON object : View

Products Affected

mybb

thankyou\/like_system

CWE

CWE-79

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

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