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CVE-2021-30638

27
FAUCET Score

CVE-2021-30638 is an Information Exposure vulnerability in Apache Tapestry versions 5.4.0 through 5.6.3, and 5.7.0 through 5.7.1, allowing attackers to download sensitive files within the WEB-INF directory via specially crafted URLs. This vulnerability carries a high CVSS score of 7.5, indicating a network-based attack with low complexity and high confidentiality impact, but no integrity or availability impact. There is currently no public exploit intelligence, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.4.0, < 5.6.4CPE matchmatch criteria
cpe:2.3:a:apache:tapestry:*:*:*:*:*:*:*:*
>= 5.7.0, < 5.7.2CPE matchmatch criteria
cpe:2.3:a:apache:tapestry:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.56%
Probability of exploitation in next 30 days
EPSS Percentile
93.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0656 is in the 88th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.apache.tapestry:tapestry-coreFixed in: 5.6.4
mavenpatch availablevia ghsa
Product: org.apache.tapestry:tapestry-coreFixed in: 5.7.2

Vendor Advisories (1)

mavenGHSA-ghm8-mmx7-xvg2high

Information Exposure in Apache Tapestry

Mar 18, 2022

References

lists.apache.org / thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb%40%3Cusers.tapestry.apache.org%3E
Mailing ListVendor Advisory
security.netapp.com / advisory/ntap-20210528-0004
Third Party Advisory
zerodayinitiative.com / advisories/ZDI-21-491
Third Party AdvisoryVDB Entry
openwall.com / lists/oss-security/2021/04/27/3
Mailing ListThird Party Advisory