Is CVE-2020-35623 in the CISA KEV catalog?

No. CVE-2020-35623 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-35623?

CVE-2020-35623 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-35623?

CVE-2020-35623 has an EPSS score of 1.08% (61th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2020-35623?

No published fix for CVE-2020-35623 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2020-35623

HIGH

7.5

CVSS v3

NVD

Description

An issue was discovered in the CasAuth extension for MediaWiki through 1.35.1. Due to improper username validation, it allowed user impersonation with trivial manipulations of certain characters within a given username. An ordinary user may be able to login as a "bureaucrat user" who has a similar username, as demonstrated by usernames that differ only in (1) bidirectional override symbols or (2) blank space.

CWE-20Improper Input Validation CWE-706

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

1.08%probability of exploitation in 30 days

61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Patch1

github.com

Exploit1

phabricator.wikimedia.org

Embed a live status badge for CVE-2020-35623

Markdown

[![CVE-2020-35623](https://tridentstack.com/cve/badge/CVE-2020-35623.svg)](https://tridentstack.com/cve/CVE-2020-35623)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-35623"><img src="https://tridentstack.com/cve/badge/CVE-2020-35623.svg" alt="CVE-2020-35623"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.