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Fencer Vulns
medium 6.1

CVE-2016-6347 json

Improper Neutralization of Input During Web Page Generation in RESTEasy

published 2017-04-20 9 y ago modified 2026-06-17 4 mo ago also GHSA-r346-rmrg-qpgh , EUVD-2022-5077

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in the default exception handler in RESTEasy allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Patch / fix

  • maven org.jboss.resteasy:resteasy-client 3.0.20.Final, 3.1.0.CR1
  • resteasy3.0 Debian 14, Debian 13, Debian 12 3.0.26-1

debian advisories DEBIAN-CVE-2016-6347

  • resteasy Ubuntu Pro 16.04 LTS 3.0.6-3ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2016-6347

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-6347 updated cvss 5.4

RESTEasy: Use of the default exception handler in RESTEasy can lead to reflected XSS attack

  • Red Hat Enterprise Linux 7 resteasy-base, resteasy-base-tjws, resteasy-base-jaxrs, resteasy-base-client, resteasy-base-javadoc, resteasy-base-jaxrs-all, +7 more Red Hat JBoss BRMS 5 security
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Data Grid 7 resteasy
    affected: no fix available
  • Red Hat JBoss Enterprise Application Platform 5 jbossas jbossas
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Application Platform 7 rest Red Hat JBoss Fuse 6 SwitchYard SwitchYard
    affected: no fix available
  • Red Hat JBoss Operations Network 3 rest Red Hat JBoss SOA Platform 5 security Red Hat Satellite 6 Security
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Virtualization 3 vdsm-jsonrpc-java Red Hat Subscription Asset Manager katello
    under investigation
  • Red Hat BPM Suite 6 Build and Assembly Build and Assembly Red Hat JBoss BRMS 6 Build and Assembly Build and Assembly Red Hat JBoss Data Grid 6 build Red Hat JBoss Data Virtualization 6 Productization Productization Red Hat JBoss Enterprise Application Platform 6 resteasy Red Hat JBoss Fuse Service Works 6 SwitchYard SwitchYard
    +2 more products
    Red Hat JBoss Portal 6 Requirements Requirements Red Hat Single Sign-On 7 core
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.87% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
maven org.jboss.resteasy:resteasy-client
<3.0.20.Final
>=3.1.0.Beta1, <3.1.0.CR1
3.0.20.Final
3.1.0.CR1

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.