Mediawiki Core vulnerabilities

CVE-2019-12468 [CRITICAL] CWE-284 Wikimedia MediaWiki Incorrect Access Control vulnerability Wikimedia MediaWiki Incorrect Access Control vulnerability An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.27.0 through 1.32.1. Directly POSTing to Special:ChangeEmail would allow for bypassing re-authentication, allowing for potential account takeover.

CVE-2023-45363 [HIGH] CWE-835 MediaWiki Denial of Service vulnerability MediaWiki Denial of Service vulnerability An issue was discovered in ApiPageSet.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. It allows attackers to cause a denial of service (unbounded loop and RequestTimeoutException) when querying pages redirected to other variants with redirects and converttitles set.

CVE-2023-29141 [CRITICAL] CWE-444 X-Forwarded-For header allows brute-forcing autoblocked IP addresses X-Forwarded-For header allows brute-forcing autoblocked IP addresses An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6, and 1.39.x before 1.39.3. An auto-block can occur for an untrusted X-Forwarded-For header.

CVE-2019-12472 [HIGH] CWE-284 MediaWiki Incorrect Access Control vulnerability MediaWiki Incorrect Access Control vulnerability An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

CVE-2020-25827 [HIGH] CWE-307 OATHAuth extension in MediaWiki is not implementing rate limit OATHAuth extension in MediaWiki is not implementing rate limit An issue was discovered in the OATHAuth extension in MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3. For Wikis using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level. Thus, multiple requests can be made across many wikis/sites concurrently.

CVE-2019-12474 [HIGH] CWE-200 Wikimedia information leak vulnerability Wikimedia information leak vulnerability Wikimedia MediaWiki 1.23.0 through 1.32.1 has an information leak. Privileged API responses that include whether a recent change has been patrolled may be cached publicly. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

CVE-2019-12473 [HIGH] CWE-400 Wikimedia Potential DOS due to slow WatchedItemStore::countVisitingWatchersMultiple Wikimedia Potential DOS due to slow WatchedItemStore::countVisitingWatchersMultiple Wikimedia MediaWiki 1.27.0 through 1.32.1 might allow DoS. Passing invalid titles to the API could cause a DoS by querying the entire watchlist table. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

CVE-2019-12470 [MEDIUM] CWE-284 Wikimedia MediaWik exposed suppressed log in RevisionDelete page Wikimedia MediaWik exposed suppressed log in RevisionDelete page Wikimedia MediaWiki through 1.32.1 has Incorrect Access Control. Suppressed log in RevisionDelete page is exposed. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

CVE-2019-12469 [MEDIUM] CWE-284 MediaWiki Incorrect Access Control vulnerability MediaWiki Incorrect Access Control vulnerability MediaWiki through 1.32.1 has Incorrect Access Control. Suppressed username or log in Special:EditTags are exposed. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

CVE-2018-0505 [MEDIUM] CWE-287 Mediawiki BotPassword can bypass CentralAuth's account lock Mediawiki BotPassword can bypass CentralAuth's account lock Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where BotPasswords can bypass CentralAuth's account lock

CVE-2018-0504 [MEDIUM] CWE-532 Mediawiki information disclosure vulnerability Mediawiki information disclosure vulnerability Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains an information disclosure flaw in the Special:Redirect/logid

CVE-2019-19709 [MEDIUM] CWE-601 Possible to circumvent title-blacklist Possible to circumvent title-blacklist MediaWiki through 1.33.1 allows attackers to bypass the Title_blacklist protection mechanism by starting with an arbitrary title, establishing a non-resolvable redirect for the associated page, and using redirect=1 in the action API when editing that page.

CVE-2021-41800 [MEDIUM] CWE-770 MediaWiki allows a denial of service MediaWiki allows a denial of service 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-2018-13258 [MEDIUM] CWE-284 Mediawiki tarball is missing .htaccess files Mediawiki tarball is missing .htaccess files Mediawiki 1.31 before 1.31.1 misses .htaccess files in the provided tarball used to protect some directories that shouldn't be web accessible.

CVE-2020-25814 [MEDIUM] CWE-79 MediaWiki Cross-site Scripting (XSS) vulnerability MediaWiki Cross-site Scripting (XSS) vulnerability In MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an tag (or it does not have a href attribute, or it's empty, etc.). The actual r

CVE-2020-10960 [MEDIUM] CWE-116 MediaWiki makeCollapsible allows applying event handler to any CSS selector MediaWiki makeCollapsible allows applying event handler to any CSS selector In MediaWiki before 1.34.1, users can add various Cascading Style Sheets (CSS) classes (which can affect what content is shown or hidden in the user interface) to arbitrary DOM nodes via HTML content within a MediaWiki page. This occurs because jquery.makeCollapsible allows applying an event handler to any Cascadi

CVE-2019-16738 [MEDIUM] CWE-200 MediaWiki information disclosure MediaWiki information disclosure In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.

CVE-2020-10959 [MEDIUM] CWE-601 MediaWiki Open Redirect vulnerability MediaWiki Open Redirect vulnerability resources/src/mediawiki.page.ready/ready.js in MediaWiki before 1.34.0-rc.0 allows remote attackers to force a logout and external redirection via HTML content in a MediaWiki page.

CVE-2019-12467 [MEDIUM] CWE-284 MediaWiki Incorrect Access Control vulnerability MediaWiki Incorrect Access Control vulnerability MediaWiki through 1.32.1 has Incorrect Access Control (issue 1 of 3). A spammer can use Special:ChangeEmail to send out spam with no rate limiting or ability to block them. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

CVE-2020-25828 [MEDIUM] CWE-79 MediaWiki Cross-site Scripting (XSS) vulnerability MediaWiki Cross-site Scripting (XSS) vulnerability An issue was discovered in MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3. The non-jqueryMsg version of mw.message().parse() doesn't escape HTML. This affects both message contents (which are generally safe) and the parameters (which can be based on user input). (When jqueryMsg is loaded, it correctly accepts only whitelisted tags in message conte