CVE-2014-3827

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-02-11 · updated 2026-06-17
Weakness: CWE-79

Description

Multiple cross-site scripting (XSS) vulnerabilities in the MyBB (aka MyBulletinBoard) before 1.8.4 allow remote authenticated users to inject arbitrary web script or HTML via the title parameter in the (1) edit or (2) add action in the user-users module or the (3) finduser action or the name parameter in an (4) edit action in the user-user module or the (5) editprofile action to modcp.php.

Affected products

mybb: before 1.8.4 — fixed in 1.8.4

How to fix

Upgrade to a fixed version: mybb 1.8.4. Check the vendor advisory for mitigations.

References

http://blog.mybb.com/2015/02/15/mybb-1-8-4-released-feature-update-security-maintenance-release/
https://adamziaja.com/poc/201312-xss-mybb.html
http://blog.mybb.com/2015/02/15/mybb-1-8-4-released-feature-update-security-maintenance-release/
https://adamziaja.com/poc/201312-xss-mybb.html

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