CVE-2021-4266

Q: How do I fix CVE-2021-4266?

Upgrade community plugin framework to 9.5.0.0-81 or later.

Q: Is CVE-2021-4266 being actively exploited?

Not that we know of. CVE-2021-4266 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.56% is the estimated probability that it will be exploited in the next 30 days. That is higher than 44% of all scored CVEs.

Q: How severe is CVE-2021-4266?

CVE-2021-4266 has a CVSS v3 base score of 3.5, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-4266 affect?

Published advisories record a fix for community plugin framework (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

LOW

3.5

CVSS v3

NVD

Description

A vulnerability classified as problematic has been found in Webdetails cpf up to 9.5.0.0-80. Affected is an unknown function of the file core/src/main/java/pt/webdetails/cpf/packager/DependenciesPackage.java. The manipulation of the argument baseUrl leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 9.5.0.0-81 is able to address this issue. The name of the patch is 3bff900d228e8cae3af256b447c5d15bdb03c174. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216468.

CWE-707 CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

community plugin frameworkNVD

Affected:< 9.5.0.0-81Fixed in:9.5.0.0-81CVE-2021-4266derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.56%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory2

Other references1

github.com

Related Vulnerabilities

Other CWE-707 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-10914	High	8.1	96%	-	-
CVE-2024-10915	High	8.1	79%	-	-
CVE-2024-43572	High	7.8	67%	KEV	Fix
CVE-2022-4257	Medium	6.3	44%	-	-
CVE-2025-26633	High	7.0	30%	KEV + Ransom	Fix
CVE-2022-3801	Medium	6.3	30%	-	-

Common questions

How do I fix CVE-2021-4266?

Upgrade community plugin framework to 9.5.0.0-81 or later.

Is CVE-2021-4266 being actively exploited?

Not that we know of. CVE-2021-4266 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.56% is the estimated probability that it will be exploited in the next 30 days. That is higher than 44% of all scored CVEs.

How severe is CVE-2021-4266?

CVE-2021-4266 has a CVSS v3 base score of 3.5, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-4266 affect?

Published advisories record a fix for community plugin framework (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.