CVE-2018-25249
MyBB My Arcade Plugin 1.3 Persistent XSS via Comment
Description
MyBB My Arcade Plugin 1.3 contains a persistent cross-site scripting vulnerability that allows authenticated users to inject malicious scripts through arcade game score comments. Attackers can add crafted HTML and JavaScript payloads in the comment field that execute when other users view or edit the comment.
INFO
Published Date :
April 4, 2026, 2:16 p.m.
Last Modified :
April 10, 2026, 9:20 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update the MyBB My Arcade Plugin.
- Sanitize all user-submitted data.
- Implement output encoding for displayed comments.
- Restrict HTML/script tags in comments.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-25249.
| URL | Resource |
|---|---|
| https://community.mybb.com/mods.php?action=view&pid=411 | Product |
| https://www.exploit-db.com/exploits/44186 | Exploit VDB Entry |
| https://www.vulncheck.com/advisories/mybb-my-arcade-plugin-persistent-xss-via-comment | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-25249 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-25249
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-25249 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-25249 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 10, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:mybb:my_arcade:1.3:*:*:*:*:mybb:*:* Added Reference Type VulnCheck: https://community.mybb.com/mods.php?action=view&pid=411 Types: Product Added Reference Type VulnCheck: https://www.exploit-db.com/exploits/44186 Types: Exploit, VDB Entry Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/mybb-my-arcade-plugin-persistent-xss-via-comment Types: Third Party Advisory -
New CVE Received by [email protected]
Apr. 04, 2026
Action Type Old Value New Value Added Description MyBB My Arcade Plugin 1.3 contains a persistent cross-site scripting vulnerability that allows authenticated users to inject malicious scripts through arcade game score comments. Attackers can add crafted HTML and JavaScript payloads in the comment field that execute when other users view or edit the comment. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://community.mybb.com/mods.php?action=view&pid=411 Added Reference https://www.exploit-db.com/exploits/44186 Added Reference https://www.vulncheck.com/advisories/mybb-my-arcade-plugin-persistent-xss-via-comment