Is CVE-2021-41798 in the CISA KEV catalog?

No. CVE-2021-41798 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41798?

CVE-2021-41798 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-41798?

CVE-2021-41798 has an EPSS score of 1.30% (67th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41798?

Upgrade mediawiki on debian 11 to 1:1.35.4-1~deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2021-41798

MEDIUM

6.1

CVSS v3

NVD

Description

MediaWiki before 1.36.2 allows XSS. Month related MediaWiki messages are not escaped before being used on the Special:Search results page.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

mediawikiDebian

Fixed in:1:1.35.4-1~deb11u1CVE-2021-41798

Fixed in:1:1.35.4-1CVE-2021-41798

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.30%probability of exploitation in 30 days

67thpercentile

Moderate risk: more likely to be exploited than 67% of all known CVEs.

References

Patch1

phabricator.wikimedia.org

Other references4

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

Embed a live status badge for CVE-2021-41798

Markdown

[![CVE-2021-41798](https://tridentstack.com/cve/badge/CVE-2021-41798.svg)](https://tridentstack.com/cve/CVE-2021-41798)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-41798"><img src="https://tridentstack.com/cve/badge/CVE-2021-41798.svg" alt="CVE-2021-41798"></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.