CVE-2011-4907Network attack vector

Installation path disclosure via missing JEXEC check

Published Jan 15, 2020 · Updated Aug 7, 2024

Path disclosure in Joomla! CMS 1.5x through 1.5.12 allows remote attackers to obtain the installation path via direct requests to unprotected PHP files. The missing defined('_JEXEC') guard lets files execute outside Joomla's bootstrap, causing PHP errors that disclose filesystem paths. No authentication or user interaction is required, but disclosure is limited to path information and does not provide code execution or data modification.

CVSS severity5.0
Medium
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path disclosure in Joomla! CMS 1.5x through 1.5.12 allows remote attackers to obtain the installation path via direct requests to unprotected PHP files. The missing defined('_JEXEC') guard lets files execute outside Joomla's bootstrap, causing PHP errors that disclose filesystem paths. No authentication or user interaction is required, but disclosure is limited to path information and does not provide code execution or data modification.

The record

CVE
CVE-2011-4907
Published
Jan 15, 2020
Updated
Aug 7, 2024
Vendor
Joomla
Product
Joomla! CMS
Classifications
CWE-434, T1083
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.5x through 1.5.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Joomla · Joomla! CMSversion=1.5x through 1.5.12

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1083File and Directory Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo