Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to become an administrator by sending a malicious link to the instance administrator.

The remote Fedora 40 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2024-2c564b942d advisory.

    https://www.mediawiki.org/wiki/Release_notes/1.41




Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3671 advisory.

  - Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator     allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to     become an administrator by sending a malicious link to the instance administrator. (CVE-2023-3550)

  - An issue was discovered in DifferenceEngine.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. diff-multi-sameuser (aka X intermediate revisions by the same user not     shown) ignores username suppression. This is an information leak. (CVE-2023-45362)

  - 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-2023-45363)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5520 advisory.

  - Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator     allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to     become an administrator by sending a malicious link to the instance administrator. (CVE-2023-3550)

  - 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-2023-45363)

  - An issue was discovered in includes/page/Article.php in MediaWiki 1.36.x through 1.39.x before 1.39.5 and     1.40.x before 1.40.1. Deleted revision existence is leaked due to incorrect permissions being checked.
    This reveals that a given revision ID belonged to the given page title, and its timestamp, both of which     are not supposed to be public information. (CVE-2023-45364)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the e59fed96-60da-11ee-9102-000c29de725b advisory.

  - Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator     allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to     become an administrator by sending a malicious link to the instance administrator. (CVE-2023-3550)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
195321	Fedora 40 : mediawiki / php-oojs-oojs-ui / php-wikimedia-cdb / etc (2024-2c564b942d)	Nessus	Fedora Local Security Checks	high
186380	Debian DLA-3671-1 : mediawiki - LTS security update	Nessus	Debian Local Security Checks	high
182866	Debian DSA-5520-1 : mediawiki - security update	Nessus	Debian Local Security Checks	high
182415	FreeBSD : mediawiki -- multiple vulnerabilities (e59fed96-60da-11ee-9102-000c29de725b)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2023-3550

high

Tenable Plugins

high

high

high

high