What’s Vulnerable › Vulnerabilities

CVE-2023-28467

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-22 · updated 2026-06-17
• Weakness: CWE-79

Description

In MyBB before 1.8.34, there is XSS in the User CP module via the user email field.

Affected products

• mybb: before 1.8.34 — fixed in 1.8.34

How to fix

Upgrade to a fixed version: mybb 1.8.34. Check the vendor advisory for mitigations.

References

• https://github.com/mybb/mybb/security/advisories/GHSA-3q8x-9fh2-v646
• https://mybb.com
• https://github.com/mybb/mybb/security/advisories/GHSA-3q8x-9fh2-v646
• https://mybb.com

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