CVE-2018-17856
First published: Tue Oct 09 2018(Updated: )
An issue was discovered in Joomla! before 3.8.13. com_joomlaupdate allows the execution of arbitrary code. The default ACL config enabled the ability of Administrator-level users to access com_joomlaupdate and trigger code execution.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/joomla/framework | >=2.5.4<=3.8.12 | 3.8.13 |
| Joomla | >=2.5.4<3.8.13 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2018-17856
- https://developer.joomla.org/security-centre/752-20181002-core-inadequate-default-access-level-for-com-joomlaupdate.html
- https://web.archive.org/web/20210124211736/http://www.securityfocus.com/bid/105559
- https://web.archive.org/web/20211208125303/http://www.securitytracker.com/id/1041914
- https://github.com/advisories/GHSA-9m72-pw47-292w (Advisory)
- http://www.securityfocus.com/bid/105559
- http://www.securitytracker.com/id/1041914
Frequently Asked Questions
What is the severity of CVE-2018-17856?
CVE-2018-17856 has a high severity rating due to the ability for Administrator-level users to execute arbitrary code.
How do I fix CVE-2018-17856?
To fix CVE-2018-17856, upgrade your Joomla installation to version 3.8.13 or later.
What components are affected by CVE-2018-17856?
CVE-2018-17856 affects the com_joomlaupdate component in Joomla! versions prior to 3.8.13.
Who can exploit CVE-2018-17856?
CVE-2018-17856 can be exploited by Administrator-level users who have access to the com_joomlaupdate component.
What is the impact of CVE-2018-17856?
The impact of CVE-2018-17856 is the potential execution of arbitrary code on vulnerable Joomla installations.
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