XSS in Apache Tomcat
CVE-2019-0221
The SSI printenv command in Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39 and 7.0.0 to 7.0.93 echoes user provided data without escaping and is, therefore, vulnerable to XSS. SSI is disabled by default. The printenv command is intended for debugging and is unlikely to be present in a production website.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.592 (99.1th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.665 · newest: 0.592 · change: -0.073
Affected products
- Apache Tomcat — versions Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39, 7.0.0 to 7.0.93
- Apache Tomcat — versions 9.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- seclists.org/fulldisclosure/2019/May/50 (mailing-list, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/05/msg00044.html (mailing-list)
- www.securityfocus.com/bid/108545 (vdb-entry)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00090.html (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00054.html (vendor-advisory)
- lists.debian.org/debian-lts-announce/2019/08/msg00015.html (mailing-list)
- usn.ubuntu.com/4128-1/ (vendor-advisory)
- usn.ubuntu.com/4128-2/ (vendor-advisory)
Frequently asked questions
- What is CVE-2019-0221?
- CVE-2019-0221 is a medium-severity vulnerability in Apache Tomcat, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-05-28.
- How severe is CVE-2019-0221?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2019-0221 known to be exploited?
- 19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.