CVE-2018-17855

Severity: high (CVSS 8.8 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: 2018-10-09 · updated 2026-06-17
Weakness: CWE-269

Description

An issue was discovered in Joomla! before 3.8.13. If an attacker gets access to the mail account of an user who can approve admin verifications in the registration process, he can activate himself.

Affected products

Joomla!: from 1.5.0 before 3.8.13 — fixed in 3.8.13

How to fix

Upgrade to a fixed version: Joomla! 3.8.13. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/105559
http://www.securitytracker.com/id/1041914
https://developer.joomla.org/security-centre/754-20181004-core-acl-violation-in-com-users-for-the-admin-verification
http://www.securityfocus.com/bid/105559
http://www.securitytracker.com/id/1041914
https://developer.joomla.org/security-centre/754-20181004-core-acl-violation-in-com-users-for-the-admin-verification

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