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Servers and applications

CVE-2011-1765

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.5, when Internet Explorer 6 or earlier is used, allows remote attackers to inject arbitrary web script or HTML via an uploaded file accessed with a dangerous extension such as .shtml at the end of the query string, in conjunction with a modified URI path that has a %2E sequence in place of the . (dot) character. NOTE: this…

Severity
Medium 4.3
Published
23 May 2011
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
2.1% in the next 30 daysHigher than 81% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Cross-site scripting (CWE-79)
Attack
Over the network · No login needed
Attacker can
Change some data
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Sources
NVD

Description

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.5, when Internet Explorer 6 or earlier is used, allows remote attackers to inject arbitrary web script or HTML via an uploaded file accessed with a dangerous extension such as .shtml at the end of the query string, in conjunction with a modified URI path that has a %2E sequence in place of the . (dot) character. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-1578 and CVE-2011-1587.

From NVD.

Affected software

SoftwareAffected versions
MediaWikiServers and applications · cpe:a:mediawiki:mediawiki
  • Version 1.16.3
  • Version 1.16.2
  • Version 1.16.1
  • Version 1.16.0
All 135 release lines
  • Every version up to 1.16.4
  • Version 1.1.0
  • Version 1.2.0
  • Version 1.2.1
  • Version 1.2.2
  • Version 1.2.3
  • Version 1.2.4
  • Version 1.2.5
  • Version 1.2.6
  • Version 1.3
  • Version 1.3.1
  • Version 1.3.2
  • Version 1.3.3
  • Version 1.3.4
  • Version 1.3.5
  • Version 1.3.6
  • Version 1.3.7
  • Version 1.3.8
  • Version 1.3.9
  • Version 1.3.10
  • Version 1.3.11
  • Version 1.3.12
  • Version 1.3.13
  • Version 1.3.14
  • Version 1.3.15
  • Version 1.4-beta1
  • Version 1.4-beta2
  • Version 1.4-beta3
  • Version 1.4-beta4
  • Version 1.4-beta5
  • Version 1.4-beta6
  • Version 1.4.0
  • Version 1.4.1
  • Version 1.4.2
  • Version 1.4.3
  • Version 1.4.4
  • Version 1.4.5
  • Version 1.4.6
  • Version 1.4.7
  • Version 1.4.8
  • Version 1.4.9
  • Version 1.4.10
  • Version 1.4.11
  • Version 1.4.12
  • Version 1.4.13
  • Version 1.4.14
  • Version 1.5-alpha1
  • Version 1.5-alpha2
  • Version 1.5-beta1
  • Version 1.5-beta2
  • Version 1.5-beta3
  • Version 1.5-beta4
  • Version 1.5-rc2
  • Version 1.5-rc3
  • Version 1.5-rc4
  • Version 1.5.0
  • Version 1.5.1
  • Version 1.5.2
  • Version 1.5.3
  • Version 1.5.4
  • Version 1.5.5
  • Version 1.5.6
  • Version 1.5.7
  • Version 1.5.8
  • Version 1.6.0
  • Version 1.6.1
  • Version 1.6.2
  • Version 1.6.3
  • Version 1.6.4
  • Version 1.6.5
  • Version 1.6.6
  • Version 1.6.7
  • Version 1.6.8
  • Version 1.6.9
  • Version 1.6.10
  • Version 1.6.11
  • Version 1.6.12
  • Version 1.7.0
  • Version 1.7.1
  • Version 1.7.2
  • Version 1.7.3
  • Version 1.8.0
  • Version 1.8.1
  • Version 1.8.2
  • Version 1.8.3
  • Version 1.8.4
  • Version 1.8.5
  • Version 1.9.0-rc2
  • Version 1.9.0
  • Version 1.9.1
  • Version 1.9.2
  • Version 1.9.3
  • Version 1.9.4
  • Version 1.9.5
  • Version 1.9.6
  • Version 1.10.0-rc1
  • Version 1.10.0-rc2
  • Version 1.10.0
  • Version 1.10.1
  • Version 1.10.2
  • Version 1.10.3
  • Version 1.10.4
  • Version 1.11.0-rc1
  • Version 1.11
  • Version 1.11.1
  • Version 1.11.2
  • Version 1.12.0-rc1
  • Version 1.12.0
  • Version 1.12.1
  • Version 1.12.2
  • Version 1.12.3
  • Version 1.12.4
  • Version 1.13.0-rc1
  • Version 1.13.0-rc2
  • Version 1.13.0
  • Version 1.13.1
  • Version 1.13.2
  • Version 1.13.3
  • Version 1.13.4
  • Version 1.14.0-rc1
  • Version 1.14.0
  • Version 1.14.1
  • Version 1.15.0-rc1
  • Version 1.15.0
  • Version 1.15.1
  • Version 1.15.2
  • Version 1.15.3
  • Version 1.15.4
  • Version 1.15.5
  • Version 1.16.0-beta1
  • Version 1.16.0-beta2
  • Version 1.16.0
  • Version 1.16.1
  • Version 1.16.2
  • Version 1.16.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-1765
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-1765