CVE-2021-30638

Q: How do I fix CVE-2021-30638?

Upgrade tapestry to 5.7.2 or later.

Q: Is CVE-2021-30638 being actively exploited?

Not that we know of. CVE-2021-30638 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 6.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 93% of all scored CVEs.

Q: How severe is CVE-2021-30638?

CVE-2021-30638 has a CVSS v3 base score of 7.5, rated high. 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-2021-30638 affect?

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

HIGHEPSS 93th pctl

7.5

CVSS v3

NVD

Description

Information Exposure vulnerability in context asset handling of Apache Tapestry allows an attacker to download files inside WEB-INF if using a specially-constructed URL. This was caused by an incomplete fix for CVE-2020-13953. This issue affects Apache Tapestry Apache Tapestry 5.4.0 version to Apache Tapestry 5.6.3; Apache Tapestry 5.7.0 version and Apache Tapestry 5.7.1.

CWE-200Information Exposure CWE-863Incorrect Authorization

How to fix

Remediation Available

tapestryNVD

Affected:>= 5.7.0, < 5.7.2Fixed in:5.7.2CVE-2021-30638derived 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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

6.56%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Vendor Advisory1

lists.apache.org

Third-Party Advisory3

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	Fix

Common questions

How do I fix CVE-2021-30638?

Upgrade tapestry to 5.7.2 or later.

Is CVE-2021-30638 being actively exploited?

Not that we know of. CVE-2021-30638 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 6.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 93% of all scored CVEs.

How severe is CVE-2021-30638?

CVE-2021-30638 has a CVSS v3 base score of 7.5, rated high. 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-2021-30638 affect?

Published advisories record a fix for tapestry (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.