CVE-2018-15882
Inadequate checks in the InputFilter class could allow specifically prepared phar files to pass the upload filter.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Joomla! before 3.8.12. Inadequate checks in the InputFilter class could allow specifically prepared phar files to pass the upload filter.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.93% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- joomla/joomla\!
- Source
- cve@mitre.org
EPSS 2.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/105166Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041913Third Party Advisory
- https://developer.joomla.org/security-centre/743-20180801-core-hardening-the-inputfilter-for-phar-stubs.htmlVendor Advisory
- http://www.securityfocus.com/bid/105166Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041913Third Party Advisory
- https://developer.joomla.org/security-centre/743-20180801-core-hardening-the-inputfilter-for-phar-stubs.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.