
CVE-2021-31552
https://notcve.org/view.php?id=CVE-2021-31552
22 Apr 2021 — An issue was discovered in the AbuseFilter extension for MediaWiki through 1.35.2. It incorrectly executed certain rules related to blocking accounts after account creation. Such rules would allow for user accounts to be created while blocking only the IP address used to create an account (and not the user account itself). Such rules could also be used by a nefarious, unprivileged user to catalog and enumerate any number of IP addresses related to these account creations. Se detectó un problema en la extens... • https://gerrit.wikimedia.org/r/q/I8bae477ad7e4d0190335363ac2decf28e4313da1 • CWE-863: Incorrect Authorization •

CVE-2021-31553
https://notcve.org/view.php?id=CVE-2021-31553
22 Apr 2021 — 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... • https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CheckUser/+/666963 • CWE-428: Unquoted Search Path or Element •

CVE-2021-31554
https://notcve.org/view.php?id=CVE-2021-31554
22 Apr 2021 — 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 • CWE-863: Incorrect Authorization •

CVE-2021-31555
https://notcve.org/view.php?id=CVE-2021-31555
22 Apr 2021 — 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 • CWE-20: Improper Input Validation •

CVE-2021-30159 – Gentoo Linux Security Advisory 202107-40
https://notcve.org/view.php?id=CVE-2021-30159
09 Apr 2021 — 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 th... • https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html •

CVE-2021-30156
https://notcve.org/view.php?id=CVE-2021-30156
09 Apr 2021 — 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 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2021-30155 – Gentoo Linux Security Advisory 202107-40
https://notcve.org/view.php?id=CVE-2021-30155
09 Apr 2021 — 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. Se detectó un problema en MediaWiki versiones anteriores a 1.31.12 y versiones 1.32.x hasta 1.35.x versiones anteriores a 1.35.2. La función ContentModelChange no comprueba si un usuario presenta permisos correctos para crear y ajustar el modelo de contenido de una página inexistente Mu... • https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html • CWE-862: Missing Authorization •

CVE-2021-30152 – Gentoo Linux Security Advisory 202107-40
https://notcve.org/view.php?id=CVE-2021-30152
09 Apr 2021 — 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. Se detectó un problema en MediaWiki versiones anteriores a 1.31.13 y versiones 1.32.x hasta 1.35.x versiones anteriores a 1.35.2. Cuando es usada la API de MediaWiki para "proteger" una página, un usuario actualmente puede proteger a un nivel más alto del que actualme... • https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html • CWE-269: Improper Privilege Management •

CVE-2021-30154 – Gentoo Linux Security Advisory 202107-40
https://notcve.org/view.php?id=CVE-2021-30154
06 Apr 2021 — 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. Se detectó un problema en MediaWiki versiones anteriores a 1.31.12 y versiones 1.32.x hasta 1.35.x anteriores a 1.35.2. En Special: NewFiles, todos los mensajes mediastatistics-header-* son generados en HTML sin escape, conllevando a una vulnerabilidad de tipo XSS Multiple security issues were found in M... • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVE-2021-30157 – Gentoo Linux Security Advisory 202107-40
https://notcve.org/view.php?id=CVE-2021-30157
06 Apr 2021 — 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. Se detectó un problema en MediaWiki versiones anteriores a 1.31.12 y versiones 1.32.x hasta 1.35.x versiones anteriores a 1.35.2. En las páginas especiales de ChangesList, como Special:RecentChanges y Special:Watchlist, algunos de los mensa... • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •