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01 Record

CVE-2021-42041

An issue was discovered in CentralAuth in MediaWiki through 1.36.2. The rightsnone MediaWiki message was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

An issue was discovered in CentralAuth in MediaWiki through 1.36.2. The rightsnone MediaWiki message was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.98% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 61.9% of scored records. A rank, not a probability.
NVD base score
6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-10-06 20:28Z5 YR AGO
Last updated
2024-08-04 03:22Z2 YR AGO
Reserved
2021-10-06
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.1
Document digest
8274b8b7ed9fcb3c6aa0a9238fec17ad0a7a8a8ddb55edef2ca3f6887b57f019

05 Affected products

VendorProductVersionsPlatforms
mediawikimediawikiNot specified—

06 References