CVE-2016-6336

MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote...

6.5 MediumFix available

MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote authenticated users with undelete permissions to bypass intended suppressrevision and deleterevision restrictions and remove the revision deletion status of arbitrary file revisions by using Special:Undelete.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

0.96%Down 0.1 points since Feb 4, 2022

What each source reports

NVD Score used 6.5

Record: CVE-2016-6336
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0: 4.0 MediumAV:N/AC:L/Au:S/C:N/I:P/A:N
Weakness: CWE-284
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-6336
Updated: 2026-11-02

EUVDEUVD-2016-7263 No score

Record: EUVD-2016-7263
Updated: 2026-11-03

GitHub AdvisoriesGHSA-p684-q58j-rxcq 6.5

MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote...

Record: GHSA-p684-q58j-rxcq
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-284
Updated: 2026-11-02

OSV 6.5

Record: CVE-2016-6336
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2016-6336 6.5

Record: DEBIAN-CVE-2016-6336
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

OSVMGASA-2016-0305 No score

Updated mediawiki packages fix security vulnerability

Check read permission when loading page content in ApiParse (CVE-2016-6331)

Make blocks log users out if $wgBlockDisablesLogin is true (CVE-2016-6332)

Make $wgBlockDisablesLogin also restrict logged in permissions (CVE-2016-6332)

Require login to preview user CSS pages (CVE-2016-6333)

Escape '<' and ']]>' in inline <style> blocks (CVE-2016-6333)

XSS in unclosed internal links (CVE-2016-6334)

API: Generate head items in the context of the given title (CVE-2016-6335)

Do not allow undeleting a revision deleted file if it is the top file (CVE-2016-6336)

The mediawiki package has been updated to version 1.23.15, which contains the above fixes.

Record: MGASA-2016-0305
Updated: 2026-11-02

Affected products

mediawiki

Affected packages

Affected packages
Package	Affected	Fixed
`mediawiki` Debian:12	before 1:1.27.1-1	1:1.27.1-1
`mediawiki` Debian:13	before 1:1.27.1-1	1:1.27.1-1
`mediawiki` Debian:14	before 1:1.27.1-1	1:1.27.1-1
`mediawiki` Mageia:5	before 1.23.15-1.mga5	1.23.15-1.mga5

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-6336 is a medium vulnerability (CVSS 6.5) in Mediawiki, published September 16, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.96%, the 61st percentile. Fixed in mediawiki 1:1.27.1-1.