Vulnerabilities (CVE)

Filtered by vendor Mediawiki Subscribe
Filtered by product Mediawiki
Total 370 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-45471 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 5.0 MEDIUM 5.3 MEDIUM
In MediaWiki through 1.37, blocked IP addresses are allowed to edit EntitySchema items.
CVE-2021-45474 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
In MediaWiki through 1.37, the Special:ImportFile URI (aka FileImporter) allows XSS, as demonstrated by the clientUrl parameter.
CVE-2021-41798 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
MediaWiki before 1.36.2 allows XSS. Month related MediaWiki messages are not escaped before being used on the Special:Search results page.
CVE-2021-45472 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
In MediaWiki through 1.37, XSS can occur in Wikibase because an external identifier property can have a URL format that includes a $1 formatter substitution marker, and the javascript: URL scheme (among others) can be used.
CVE-2021-41799 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 5.0 MEDIUM 7.5 HIGH
MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). ApiQueryBacklinks (action=query&list=backlinks) can cause a full table scan.
CVE-2021-41800 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 5.0 MEDIUM 5.3 MEDIUM
MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). Visiting Special:Contributions can sometimes result in a long running SQL query because PoolCounter protection is mishandled.
CVE-2021-35197 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 5.0 MEDIUM 7.5 HIGH
In MediaWiki before 1.31.15, 1.32.x through 1.35.x before 1.35.3, and 1.36.x before 1.36.1, bots have certain unintended API access. When a bot account has a "sitewide block" applied, it is able to still "purge" pages through the MediaWiki Action API (which a "sitewide block" should have prevented).
CVE-2021-31556 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 7.5 HIGH 9.8 CRITICAL
An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. MWOAuthConsumerSubmitControl.php does not ensure that the length of an RSA key will fit in a MySQL blob.
CVE-2021-30156 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Special:Contributions can leak that a "hidden" user exists.
CVE-2021-30157 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On ChangesList special pages such as Special:RecentChanges and Special:Watchlist, some of the rcfilters-filter-* label messages are output in HTML unescaped, leading to XSS.
CVE-2021-30155 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. ContentModelChange does not check if a user has correct permissions to create and set the content model of a nonexistent page.
CVE-2021-30159 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Users can bypass intended restrictions on deleting pages in certain "fast double move" situations. MovePage::isValidMoveTarget() uses FOR UPDATE, but it's only called if Title::getArticleID() returns non-zero with no special flags. Next, MovePage::moveToInternal() will delete the page if getArticleID(READ_LATEST) is non-zero. Therefore, if the page is missing in the replica DB, isValidMove() will return true, and then moveToInternal() will unconditionally delete the page if it can be found in the master.
CVE-2021-30158 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Blocked users are unable to use Special:ResetTokens. This has security relevance because a blocked user might have accidentally shared a token, or might know that a token has been compromised, and yet is not able to block any potential future use of the token by an unauthorized party.
CVE-2021-30152 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.13 and 1.32.x through 1.35.x before 1.35.2. When using the MediaWiki API to "protect" a page, a user is currently able to protect to a higher level than they currently have permissions for.
CVE-2021-30154 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.
CVE-2020-35475 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 5.0 MEDIUM 7.5 HIGH
In MediaWiki before 1.35.1, the messages userrights-expiry-current and userrights-expiry-none can contain raw HTML. XSS can happen when a user visits Special:UserRights but does not have rights to change all userrights, and the table on the left side has unchangeable groups in it. (The right column with the changeable groups is not affected and is escaped correctly.)
CVE-2020-35480 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don't exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers. This exists on various code paths.
CVE-2020-35477 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 5.0 MEDIUM 5.3 MEDIUM
MediaWiki before 1.35.1 blocks legitimate attempts to hide log entries in some situations. If one sets MediaWiki:Mainpage to Special:MyLanguage/Main Page, visits a log entry on Special:Log, and toggles the "Change visibility of selected log entries" checkbox (or a tags checkbox) next to it, there is a redirection to the main page's action=historysubmit (instead of the desired behavior in which a revision-deletion form appears).
CVE-2020-35474 2 Fedoraproject, Mediawiki 2 Fedora, Mediawiki 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
In MediaWiki before 1.35.1, the combination of Html::rawElement and Message::text leads to XSS because the definition of MediaWiki:recentchanges-legend-watchlistexpiry can be changed onwiki so that the output is raw HTML.
CVE-2020-35479 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2023-11-07 4.3 MEDIUM 6.1 MEDIUM
MediaWiki before 1.35.1 allows XSS via BlockLogFormatter.php. Language::translateBlockExpiry itself does not escape in all code paths. For example, the return of Language::userTimeAndDate is is always unsafe for HTML in a month value. This affects MediaWiki 1.12.0 and later.