Is CVE-2021-40369 in the CISA KEV catalog?

No. CVE-2021-40369 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-40369?

CVE-2021-40369 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-40369?

CVE-2021-40369 has an EPSS score of 3.31% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-40369?

Upgrade jspwiki to 2.11.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-40369

MEDIUMEPSS 87th pctl

6.1

CVSS v3

NVD

Description

A carefully crafted plugin link invocation could trigger an XSS vulnerability on Apache JSPWiki, related to the Denounce plugin, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim. Apache JSPWiki users should upgrade to 2.11.0 or later.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

jspwikiNVD

Affected:< 2.11.0Fixed in:2.11.0CVE-2021-40369derived from NVD

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

3.31%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory1

openwall.com

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

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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.