Description

myBB Forums 1.8.26 contains a stored cross-site scripting vulnerability in the forum management system that allows authenticated administrators to inject malicious scripts when creating new forums. Attackers can exploit this vulnerability by inserting script payloads in the forum title field when adding new forums through the 'Forums and Posts' > 'Forum Management' interface, causing arbitrary JavaScript to execute when the forum listing is viewed.

INFO

Published Date :

2025-12-22T21:35:35.141Z

Last Modified :

2025-12-22T22:04:19.313Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2023-53977 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2023-53977.

URL Resource
https://mybb.com/ cve-icon cve-icon
https://www.exploit-db.com/exploits/51136 cve-icon cve-icon
https://www.vulncheck.com/advisories/mybb-forums-stored-cross-site-scripting-via-forum-management cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact