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MitreCVE-2020-25812

HistorySep 27, 2020 - 9:15 p.m.

CVE-2020-25812

2020-09-2721:15:12

CWE-79

mitre

web.nvd.nist.gov

cve-2020-25812

mediawiki

xss

nvd

security vulnerability

CVSS2

4.3

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

6.1

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

AI Score

6.2

Confidence

High

EPSS

0.001

Percentile

49.9%

JSON

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.

Affected configurations

Nvd

Node

mediawikimediawikiRange1.34.0–1.34.4

Node

fedoraprojectfedoraMatch33

VendorProductVersionCPE
mediawikimediawiki*cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*