CVE-2023-27890

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: 2023-04-14 · updated 2026-06-17
Weakness: CWE-79

Description

The Export User plugin through 2.0 for MyBB allows XSS during the process of an admin generating DSGVO data for a user, via the Custom User Title, Location, or Bio field. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

Export User Project Export User: through 2.0

References

http://packetstormsecurity.com/files/171421/MyBB-Export-User-2.0-Cross-Site-Scripting.html
https://community.mybb.com/mods.php?action=view&pid=1408
https://community.mybb.com/user-121250.html
http://packetstormsecurity.com/files/171421/MyBB-Export-User-2.0-Cross-Site-Scripting.html
https://community.mybb.com/mods.php?action=view&pid=1408
https://community.mybb.com/user-121250.html

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