CVE-2018-17855 json
An issue was discovered in Joomla!
published 2018-10-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-9598
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- joomla joomla! 3.8.13
Exploit prediction
1.90% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
developer.joomla.org
/security-centre/754-20181004-core-acl-violation-in-com-users-for-the-admin-verification
vendor-advisory
-
securityfocus.com
/bid/105559
vdb-entry, third-party-advisory
-
securitytracker.com
/id/1041914
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-17855
- NVD CVE-2018-17855
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.