Auth bypass in Apache Tapestry
CVE-2021-30638
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.066 (93.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.066 · newest: 0.066 · change: 0.000
Affected products
- Apache Tapestry
- Apache Software Foundation Tapestry — versions Apache Tapestry
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256ca… (Mailing List, Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/04/27/3 (mailing-list, Mailing List, Third Party Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-491/ (VDB Entry, Third Party Advisory)
- security.netapp.com/advisory/ntap-20210528-0004/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-30638?
- CVE-2021-30638 is a high-severity vulnerability in Apache Tapestry, classified under Information Disclosure. CVSS score: 7.5/10. Published 2021-04-27.
- How severe is CVE-2021-30638?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-30638 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.