CVE-2016-9836: n/a vulnerability

CVE-2016-9836: The file scanning mechanism of JFilterInput::isFileSafe() in Joomla!

The file scanning mechanism of JFilterInput::isFileSafe() in Joomla! CMS before 3.6.5 does not consider alternative PHP file extensions when checking uploaded files for PHP content, which enables a user to upload and execute files with the `.php6`, `.php7`, `.phtml`, and `.phpt` extensions. Additionally, JHelperMedia::canUpload() did not blacklist these file extensions as uploadable file types.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 02:59 UTC (UTC+00:00)

Security readout for executives and security teams

Older Joomla sites before 3.6.5 could allow uploaded files with alternative PHP extensions to be treated as safe. If an attacker has upload access, this can lead to executable PHP content on the site, creating a serious compromise path. Exposure is likely limited to Joomla CMS installations before 3.6.5 with file upload functionality enabled, especially where untrusted or lower-privileged users can upload media or files. Prioritize remediation for internet-facing Joomla sites or sites allowing customer, partner, or low-privilege uploads. The business risk is full website compromise if upload access is abused. Mitigation focus: Upgrade Joomla CMS to 3.6.5 or later.; Check Joomla vendor guidance for supported fixes.; Block .php6, .php7, .phtml, and .phpt uploads..

Prepared: Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 5, 2016, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://github.com/XiphosResearch/exploits/tree/master/JoomraaCVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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