Description
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.
Published: 2026-04-04
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Client‑Side XSS
Action: Disable plugin
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 20 Apr 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Mybb thankyou\/like System
CPEs cpe:2.3:a:mybb:thankyou\/like_system:*:*:*:*:*:mybb:*:*
Vendors & Products Mybb thankyou\/like System

Tue, 07 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
First Time appeared Mybb mybb Like Plugin
Vendors & Products Mybb mybb Like Plugin
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 04 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description 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.
Title MyBB Like Plugin 3.0.0 Cross-Site Scripting via User Profiles
First Time appeared Mybb
Mybb mybb
Weaknesses CWE-79
CPEs cpe:2.3:a:mybb:mybb:3.0.0:*:*:*:*:*:*:*
Vendors & Products Mybb
Mybb mybb
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


Subscriptions

Mybb Mybb Mybb Like Plugin Thankyou\/like System
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-06T18:59:16.411Z

Reserved: 2026-04-04T13:21:58.860Z

Link: CVE-2018-25247

cve-icon Vulnrichment

Updated: 2026-04-06T18:59:03.666Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-04T14:16:20.500

Modified: 2026-04-20T14:30:36.060

Link: CVE-2018-25247

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-06T21:57:40Z

Weaknesses