CVE-2021-27279

Medium

Description

MyBB before 1.8.25 allows stored XSS via nested [email] tags with MyCode (aka BBCode).

SeverityMedium
CVSS5.4
Exploit probability—
ProductMybb
PublishedFeb 22, 2021
First seenFeb 22, 2021

How to fix

Update
  • mybb mybb1.8.25 or later

Affected products

ProductAffected versionsFixed in
mybb mybbv < 1.8.251.8.25

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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