THREATPORT/VULNERABILITY/CVE-2021-30638
HIGH SEVERITY

CVE-2021-30638

Tapestry vulnerability

CVSS
7.5
EPSS
6.6%
EPSS pct
93th
Exploited
No known
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 vendor
Apache
Affected product
Tapestry
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
  • CWE-200 — Exposure of Sensitive Information
  • CWE-863 — Incorrect Authorization
Published
2021-04-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 6.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2021-30638

  • Confirm whether Apache Tapestry is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-30638.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-30638

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-30638 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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