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CVE-2017-16043

20
FAUCET Score

CVE-2017-16043 describes a cross-site scripting (XSS) vulnerability in the Shout IRC client, affecting versions 0.44.0 through 0.49.3. The vulnerability arises because the /topic command in messages is unescaped, allowing attackers to inject malicious HTML scripts that execute in a victim's browser. With a CVSS score of 6.1 (Medium), this vulnerability requires user interaction (UI:R) and could lead to low confidentiality and integrity impacts (C:L, I:L). There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB, with minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.44.0, < 0.50.0CPE matchmatch criteria
cpe:2.3:a:shout_project:shout:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 72nd percentile among its peer group of 26,209 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: shoutFixed in: 0.50.0

Vendor Advisories (1)

npmGHSA-26q7-g57v-mxcpmedium

HTML Injection in shout

Nov 7, 2018

References

github.com / erming/shout/pull/344
Third Party Advisory
nodesecurity.io / advisories/322
Third Party Advisory