Ubuntu.comUB:CVE-2020-35479CVE-2020-35479
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
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
EPSS
Percentile
59.2%
MediaWiki before 1.35.1 allows XSS via BlockLogFormatter.php.
Language::translateBlockExpiry itself does not escape in all code paths.
For example, the return of Language::userTimeAndDate is is always unsafe
for HTML in a month value. This affects MediaWiki 1.12.0 and later.
References
launchpad.net/bugs/cve/CVE-2020-35479
lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html
lists.wikimedia.org/pipermail/wikitech-l/2020-December/094126.html
nvd.nist.gov/vuln/detail/CVE-2020-35479
phabricator.wikimedia.org/T268938
security-tracker.debian.org/tracker/CVE-2020-35479
www.cve.org/CVERecord?id=CVE-2020-35479
Related
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
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
EPSS
Percentile
59.2%