CVE-2020-17531
Serialization vulnerability in Apache Tapestry
9.8
CRITICAL
CVSS 3.1
EPSS 9.7%
Description
A Java Serialization vulnerability was found in Apache Tapestry 4. Apache Tapestry 4 will attempt to deserialize the "sp" parameter even before invoking the page's validate method, leading to deserialization without authentication. Apache Tapestry 4 reached end of life in 2008 and no update to address this issue will be released. Apache Tapestry 5 versions are not vulnerable to this issue. Users of Apache Tapestry 4 should upgrade to the latest Apache Tapestry 5 version.
How to fix CVE-2020-17531
To remediate CVE-2020-17531, upgrade the affected package to a fixed version below.
- —upgrade to 5.0.1 or later
Is CVE-2020-17531 being exploited?
Moderate — EPSS is 9.7%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- >= 4.0, < 5.0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |