CVE-2018-11321

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-05-22 · updated 2026-06-17
Weakness: CWE-20

Description

An issue was discovered in com_fields in Joomla! Core before 3.8.8. Inadequate filtering allows users authorised to create custom fields to manipulate the filtering options and inject an unvalidated option.

Affected products

Joomla!: before 3.8.8 — fixed in 3.8.8

How to fix

Upgrade to a fixed version: Joomla! 3.8.8. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/104271
http://www.securitytracker.com/id/1040966
https://developer.joomla.org/security-centre/734-20180506-core-filter-field-in-com-fields-allows-remote-code-execution.html
http://www.securityfocus.com/bid/104271
http://www.securitytracker.com/id/1040966
https://developer.joomla.org/security-centre/734-20180506-core-filter-field-in-com-fields-allows-remote-code-execution.html

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