CVE-2016-6347

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.

Published: 2017-04-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-6347 is rated Moderate Risk (51/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.55%). EPSS rose +1.46% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-6347

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.09% 1.55% +1.46%
2 2025-12-07 0.20% 0.09% -0.11%
3 2025-03-30 — 0.20% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-6347

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2016-6347

GitHub Security Advisory for CVE-2016-6347

GHSA-r346-rmrg-qpgh · Severity: medium · Ecosystem: maven — Improper Neutralization of Input During Web Page Generation in RESTEasy

OS Trackers for CVE-2016-6347

vendor priority summary link
debian low CVE-2016-6347 low priority: Debian including 2 source packages (resteasy, resteasy3.0), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2016-6347
redhat medium — https://access.redhat.com/security/cve/CVE-2016-6347
ubuntu medium CVE-2016-6347 medium priority: Ubuntu including 2 source packages (resteasy, resteasy3.0), 28 status rows across 22 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, trusty, upstream, xenial, yakkety, zesty): ignored 11, not-affected 10, DNE 4, released 3. https://ubuntu.com/security/CVE-2016-6347

Affected software / configurations for CVE-2016-6347

Vendor Product Version Raw CPE
redhat resteasy — cpe:2.3:a:redhat:resteasy:-:*:*:*:*:*:*:*

References for CVE-2016-6347

URL Tags
http://www.securityfocus.com/bid/92759 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1372124 Issue Tracking Third Party Advisory VDB Entry
cvelogic Threat Intelligence