Ubuntu.comUB:CVE-2020-25812CVE-2020-25812
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
41.5%
An issue was discovered in MediaWiki 1.34.x before 1.34.4. On
Special:Contributions, the NS filter uses unescaped messages as keys in the
option key for an HTMLForm specifier. This is vulnerable to a mild XSS if
one of those messages is changed to include raw HTML.
References
gerrit.wikimedia.org/g/mediawiki/core/+/ad4a3ba45fb955aa8c0eb3c83809b16b40a498b9/includes/specials/SpecialContributions.php#592
launchpad.net/bugs/cve/CVE-2020-25812
lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
lists.wikimedia.org/pipermail/wikitech-l/2020-September/093888.html
nvd.nist.gov/vuln/detail/CVE-2020-25812
phabricator.wikimedia.org/T255918
security-tracker.debian.org/tracker/CVE-2020-25812
www.cve.org/CVERecord?id=CVE-2020-25812
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
41.5%