CVE-2021-30638

An Information Disclosure due to insufficient input validation exists in Apache Tapestry 5.4.0 and later

HIGH

7.5

CVSS Score

Published: April 27, 2021 at 06:30 PM UTC

Updated: June 17, 2026 at 03:50 AM UTC

1 product affected across 1 vendorTapestry

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Severity

HIGH7.5

Exploit prediction

EPSS 7%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tapestry · Apachemaven

95%

5.4.0 ≤ v < 5.6.45.7.0 ≤ v < 5.7.2Apache Tapestry ≤ v < Apache Tapestry 5.6.4Apache Tapestry ≤ v < Apache Tapestry 5.7.2

Affected range stops below 5.6.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.7.2, so it looks safe — our inference, not a vendor statement

Affected range stops below Apache Tapestry 5.6.4, so it looks safe — our inference, not a vendor statement

Affected range stops below Apache Tapestry 5.7.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb%40%3Cusers.tapestry.apache.org%3E

References (4)

Mailing Listx_refsource_MLISTThird Party Advisory

Source: [email protected]

http://www.openwall.com/lists/oss-security/2021/04/27/3

x_refsource_MISCMailing ListVendor Advisory

Source: [email protected]

https://lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb%40%3Cusers.tapestry.apache.org%3E

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://security.netapp.com/advisory/ntap-20210528-0004/

x_refsource_MISCThird Party AdvisoryVDB Entry

Source: [email protected]

https://www.zerodayinitiative.com/advisories/ZDI-21-491/

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-200CWE-863

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