PatchTheCVECVE-2019-15477: Jooby before 1.6.4 has XSS via the default error handler.
42
This month
MEDIUM 6.1UPGRADE
CVE-2019-15477 is a medium-severity flaw (CVSS 6.1) affecting jooby. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Jooby before 1.6.4 has XSS via the default error handler.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.0% (top 38%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2019-08-23 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
jooby jooby UPGRADE
Affected: < 1.6.4
Fixed in: 1.6.4
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy jooby || rpm -q jooby || jooby --version
2. UPGRADE to 1.6.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade jooby
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade jooby
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-15477?
jooby: upgrade to 1.6.4. Exact commands for each OS are on this page.
Is CVE-2019-15477 being exploited?
CVE-2019-15477 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-15477 affect?
CVE-2019-15477 affects jooby. Severity is medium (CVSS 6.1). Jooby before 1.6.4 has XSS via the default error handler.
How urgent is CVE-2019-15477?
Priority 42/100. Public exploit reference
Related CVEs
- CVE-2020-7647 MEDIUM 5.3 UPGRADE All versions before 1.6.7 and all versions after 2.0.0 inclusive and before 2.8.2 of io.jooby:jooby and org.jo
- CVE-2020-7622 MEDIUM 6.5 UPGRADE This affects the package io.jooby:jooby-netty before 1.6.9, from 2.0.0 and before 2.2.1