Information disclosure in MediaWiki
CVE-2021-46148
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. Some unprivileged users can view confidential information (e.g., IP addresses and User-Agent headers for election traffic) on a testwiki SecurePoll instance.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.012 (66.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
References
- phabricator.wikimedia.org/T290808 (Third Party Advisory)
- phabricator.wikimedia.org/T290856 (Third Party Advisory)
- gerrit.wikimedia.org/r/q/Ib2715adb281f8892b586dcb1895e87ac0eb548b0 (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-46148?
- CVE-2021-46148 is a medium-severity vulnerability in MediaWiki, classified under Information Disclosure. CVSS score: 6.5/10. Published 2022-01-10.
- How severe is CVE-2021-46148?
- Medium severity. CVSS v3 base score is 6.5 out of 10.