---
id: CVE-2018-25247
title: MyBB Like Plugin 3.0.0 contains a stored cross-site scripting vulnerability
summary: >-
  MyBB Like Plugin 3.0.0 contains a stored cross-site scripting vulnerability.
  Authenticated attackers can inject script payloads into post or thread
  subjects; when other users view a profile that displays the attacker's liked
  posts, the u…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: mybb
product: thankyou/like_system
affected:
  - thankyou/like_system <= 3.0.0
published: '2026-04-04'
updated: '2026-07-21'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-25247'
references:
  - url: 'https://community.mybb.com/mods.php?action=view&pid=360'
    label: disclosure@vulncheck.com
  - url: 'https://www.exploit-db.com/exploits/45179'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/mybb-like-plugin-cross-site-scripting-via-user-profiles
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00229
epssPercentile: 0.1392
ingestedAt: '2026-07-21T16:51:41.596Z'
---

## Overview

MyBB Like Plugin 3.0.0 contains a stored cross-site scripting vulnerability. Authenticated attackers can inject script payloads into post or thread subjects; when other users view a profile that displays the attacker's liked posts, the unsanitized subject is rendered, executing the script in the viewer's browser.

## Affected

- `thankyou/like_system <= 3.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.