CVE-2023-28467: User CP email persistent XSS

Impact

Cross-site scripting (XSS) vulnerability in the User CP module allows remote authenticated users to inject HTML via the user email field, triggered on the User CP Home page.

Modification of user’s own email address requires providing the account password.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Patches

MyBB 1.8.34 resolves this issue with the following changes:

• Commit: d6a57e4
  • .patch: https://github.com/mybb/mybb/commit/d6a57e496dc46b56bccc4d1afbc6ffc33a14738c.patch

References

• Release Notes: https://mybb.com/versions/1.8.34/

For more information

Go to mybb.com/security to report possible security concerns or to learn more about security research at MyBB.

Contact

The security team can be reached at [email protected].