LOW CVSS 3.5
Published: 2026-08-18

CVE-2026-45128

Software Component Vulnerability Advisory (CWE-Not-Specified)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Security vulnerability CVE-2026-45128 affecting Generic/Unknown Software Component. Evaluated with CVSS Base Score of 3.5 (LOW).

Original NVD Description

Source: NIST NVD
MyBB is free and open source forum software. Prior to 1.8.40, the ACP Users View Manager module does not validate requests correctly, allowing same-site attackers to change a victim administrator's default user list view by embedding a specially crafted URL. The Set as Default control named set_default in Admin CP, Users & Groups, Users, View Manager changes the administrator's default view on GET requests without request forgery protection. The uniquely identifying implementation details include Users & Groups → Users → View Manager, and admin/inc/functions_view_manager.php. This issue is fixed in version 1.8.40.

📊 CVSS v3.1 Metric Breakdown

🎯 Affected Versions Matrix

Affected Product Generic/Unknown / Software Component
Affected Versions Unspecified
Weakness Enumeration CWE-Not-Specified

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

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Technical Analysis
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Risk Snapshot
3.5
LOW SEVERITY
CVE ID CVE-2026-45128
Weakness CWE-Not-Specified
Vendor Generic/Unknown
Product Software Component
Published 2026-08-18
Vector N/A
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