CVE-2021-44857
Published: 17 December 2021
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=mcrundo followed by action=mcrrestore to replace the content of any arbitrary page (that the user doesn't have edit rights for). This applies to any public wiki, or a private wiki that has at least one page set in $wgWhitelistRead.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
mediawiki Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Not vulnerable
(code not present)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Not vulnerable
(1:1.35.5-1)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Released
(1:1.35.5-1)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: https://github.com/wikimedia/mediawiki/commit/7b0c94fb0be44be33393e34cf8bc73798105f78e upstream: https://github.com/wikimedia/mediawiki/commit/5d5a3c0720520f75e723d3b5a37e793a6e674e4f |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |