CVE-2023-53976 (GCVE-0-2023-53976)

Vulnerability from cvelistv5 – Published: 2025-12-22 21:35 – Updated: 2026-04-07 14:08
VLAI
Title
myBB Forums 1.8.26 Stored Cross-Site Scripting via Template Management
Summary
myBB Forums 1.8.26 contains a stored cross-site scripting vulnerability in the template management system that allows authenticated administrators to inject malicious scripts when creating new templates. Attackers can exploit this vulnerability by inserting script payloads in the template title field when adding new templates through the 'Templates and Style' > 'Templates' > 'Manage Templates' > 'Global Templates' interface, causing arbitrary JavaScript to execute when the template is viewed.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-22 21:57 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6925 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Mybb myBB forums Affected: 1.8.26
    cpe:2.3:a:mybb:mybb:1.8.26:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2023-03-30 00:00
Credits
Andrey Stoykov
Show details on NVD website
To clipboard 

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