RESTEasy: Use of the default exception handler in RESTEasy can lead to reflected XSS attack
Published Apr 20, 2017
6.1
MEDIUMCVSS 3.0
EPSS 1.88%
Description
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.
Affected products
No data.
No data.
Red Hat BPM Suite 6
Build and Assembly
Not affected
Red Hat Enterprise Linux 7
resteasy-base
Will not fix
Red Hat Enterprise Virtualization 3
vdsm-jsonrpc-java
Under investigation
Red Hat JBoss BRMS 5
security
Will not fix
Red Hat JBoss BRMS 6
Build and Assembly
Not affected
Red Hat JBoss Data Grid 6
build
Not affected
Red Hat JBoss Data Grid 7
resteasy
Affected
Red Hat JBoss Data Virtualization 6
Productization
Not affected
Red Hat JBoss Enterprise Application Platform 5
jbossas
Will not fix
Red Hat JBoss Enterprise Application Platform 6
resteasy
Not affected
Red Hat JBoss Enterprise Application Platform 7
rest
Affected
Red Hat JBoss Fuse 6
SwitchYard
Affected
Red Hat JBoss Fuse Service Works 6
SwitchYard
Not affected
Red Hat JBoss Operations Network 3
rest
Will not fix
Red Hat JBoss Portal 6
Requirements
Not affected
Red Hat JBoss SOA Platform 5
security
Will not fix
Red Hat Satellite 6
Security
Will not fix
Red Hat Single Sign-On 7
core
Not affected
Red Hat Subscription Asset Manager
katello
Under investigation
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat BPM Suite 6 | Build and Assembly | Not affected | n/a |
| Red Hat Enterprise Linux 7 | resteasy-base | Will not fix | n/a |
| Red Hat Enterprise Virtualization 3 | vdsm-jsonrpc-java | Under investigation | n/a |
| Red Hat JBoss BRMS 5 | security | Will not fix | n/a |
| Red Hat JBoss BRMS 6 | Build and Assembly | Not affected | n/a |
| Red Hat JBoss Data Grid 6 | build | Not affected | n/a |
| Red Hat JBoss Data Grid 7 | resteasy | Affected | n/a |
| Red Hat JBoss Data Virtualization 6 | Productization | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 5 | jbossas | Will not fix | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | resteasy | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 7 | rest | Affected | n/a |
| Red Hat JBoss Fuse 6 | SwitchYard | Affected | n/a |
| Red Hat JBoss Fuse Service Works 6 | SwitchYard | Not affected | n/a |
| Red Hat JBoss Operations Network 3 | rest | Will not fix | n/a |
| Red Hat JBoss Portal 6 | Requirements | Not affected | n/a |
| Red Hat JBoss SOA Platform 5 | security | Will not fix | n/a |
| Red Hat Satellite 6 | Security | Will not fix | n/a |
| Red Hat Single Sign-On 7 | core | Not affected | n/a |
| Red Hat Subscription Asset Manager | katello | Under investigation | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of RESTEasy as shipped with Red Hat Satellite 6. Red Hat Product Security has rated this issue as having a security impact of Moderate. Additionally Red Hat Satellite does not use the default ExceptionMapper, and the custom exception handler does not allow return type of text/html. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.88% (0.01875) | 78.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.55% (0.01553) | 71.82th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.20% (0.00200) | 40.13th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00071) | 33.00th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.07% (0.00071) | 30.93th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00071) | 28.93th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (6)
- http://www.securityfocus.com/bid/92759 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-6347 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1372124 x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
- https://github.com/advisories/GHSA-r346-rmrg-qpgh Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-6347
- https://www.cve.org/CVERecord?id=CVE-2016-6347
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/92759 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-6347 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1372124 | x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry | |
| https://github.com/advisories/GHSA-r346-rmrg-qpgh | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-6347 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-6347 |
Change history (0)
No recorded changes yet.