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Servers and applications

CVE-2011-2891

Joomla! 1.6.x before 1.6.2 allows remote attackers to obtain sensitive information via an empty Itemid array parameter to index.php, which reveals the installation path in an error message, a different vulnerability than CVE-2011-2488.

Severity
Medium 5.0
Published
27 Jul 2011
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
1.4% in the next 30 daysHigher than 72% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Information exposure (CWE-200)
Attack
Over the network · No login needed
Attacker can
Read some data
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
Joomla!Servers and applications · cpe:a:joomla:joomla\!
  • Version 1.6.1
  • Version 1.6.0
  • Version 1.6-rc1
  • Version 1.6-beta15
All 20 release lines
  • Version 1.6-alpha
  • Version 1.6-alpha2
  • Version 1.6-beta1
  • Version 1.6-beta2
  • Version 1.6-beta3
  • Version 1.6-beta4
  • Version 1.6-beta5
  • Version 1.6-beta6
  • Version 1.6-beta7
  • Version 1.6-beta8
  • Version 1.6-beta9
  • Version 1.6-beta10
  • Version 1.6-beta11
  • Version 1.6-beta12
  • Version 1.6-beta13
  • Version 1.6-beta14
  • Version 1.6-beta15
  • Version 1.6-rc1
  • Version 1.6.0
  • Version 1.6.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-2891
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-2891