CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-31553
https://notcve.org/view.php?id=CVE-2021-31553
An issue was discovered in the CheckUser extension for MediaWiki through 1.35.2. MediaWiki usernames with trailing whitespace could be stored in the cu_log database table such that denial of service occurred for certain CheckUser extension pages and functionality. For example, the attacker could turn off Special:CheckUserLog and thus interfere with usage tracking. Se detectó un problema en la extensión CheckUser para MediaWiki versiones hasta 1.35.2. Unos nombres de usuario de MediaWiki con espacios en blanco al final podrían ser almacenados en la tabla de la base de datos cu_log de manera que se produjera una denegación de servicio para determinadas páginas de extensión y funcionalidad CheckUser. • https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666963 https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666964 https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667023 https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667024 https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667025 https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/667027 https://phabricator.wikimedia.org/T275669 • CWE-428: Unquoted Search Path or Element •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-31554
https://notcve.org/view.php?id=CVE-2021-31554
An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It improperly handled account blocks for certain automatically created MediaWiki user accounts, thus allowing nefarious users to remain unblocked. Se detectó un problema en la extensión AbuseFilter para MediaWiki versiones hasta 1.35.2. Manejó inapropiadamente unos bloqueos de cuentas para determinadas cuentas de usuario de MediaWiki creadas automáticamente, lo que permitió a usuarios nefastos permanecieran desbloqueados • https://gerrit.wikimedia.org/r/q/Ie1f4333d5b1c9d17fb2236fe38a31de427a4cc48 https://phabricator.wikimedia.org/T272244 • CWE-863: Incorrect Authorization •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-31555
https://notcve.org/view.php?id=CVE-2021-31555
An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length. Se detectó un problema en la extensión Oauth para MediaWiki versiones hasta 1.35.2. No comprobó la longitud del parámetro oarc_version (también se conoce como oauth_registered_consumer.oarc_version) • https://gerrit.wikimedia.org/r/q/I222c053b4b14ac1ad0f5b3a51565b1b9cd4c139d https://phabricator.wikimedia.org/T277388 • CWE-20: Improper Input Validation •
CVSS: 4.3EPSS: 0%CPEs: 6EXPL: 1CVE-2021-30159
https://notcve.org/view.php?id=CVE-2021-30159
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. • https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT https://phabricator.wikimedia.org/T272386 https://security.gentoo.org/glsa/202107-40 https://www.debian.org/security/2021/dsa-4889 •
CVSS: 4.3EPSS: 0%CPEs: 4EXPL: 1CVE-2021-30156
https://notcve.org/view.php?id=CVE-2021-30156
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. Se detectó un problema en MediaWiki versiones anteriores a 1.31.12 y 1.32.xa 1.35.x versiones anteriores a 1.35.2. Special:Contributions pueden filtrar que un usuario "hidden" exista • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT https://phabricator.wikimedia.org/T276306 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •