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CVE-2019-17220

31
FAUCET Score

CVE-2019-17220 describes a Cross-Site Scripting (XSS) vulnerability in Rocket.Chat versions prior to 2.1.0, where malicious JavaScript can be injected via a URL within a specific markdown format. This medium-severity vulnerability (CVSS 6.1) requires user interaction (UI:R) and network access (AV:N), potentially leading to information disclosure and integrity compromise (C:L/I:L). While not actively exploited in the wild (KEV: No), public exploit code is available on ExploitDB, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.0CPE matchmatch criteria
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*

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
4.02%
Probability of exploitation in next 30 days
EPSS Percentile
89.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-47537 · Oct 23, 2019
This CVE's current EPSS score of 0.0402 is in the 95th percentile among its peer group of 26,234 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

No media coverage found for this CVE.

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)

github_advisorypatch availablevia nvd_reference
View patch

References

packetstormsecurity.com / files/154944/Rocket.Chat-2.1.0-Cross-Site-Scripting.html
github.com / RocketChat/Rocket.Chat/commits/develop
PatchThird Party Advisory
github.com / RocketChat/Rocket.Chat/releases
Release NotesThird Party Advisory
nezami.me
ExploitThird Party Advisory