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CVE-2019-3911

32
FAUCET Score

CVE-2019-3911 is a reflected cross-site scripting (XSS) vulnerability affecting LabKey Server Community Edition versions prior to 18.3.0-61806.763. An unauthenticated remote attacker can exploit this by injecting arbitrary JavaScript into the onerror parameter of the /__r2/query endpoints. This vulnerability has a CVSS score of 6.1 (Medium), indicating a low attack complexity and the potential for limited confidentiality and integrity impacts. While there are Nuclei templates available for detection, there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 18.3.0-61806.763CPE matchmatch criteria
cpe:2.3:a:labkey:labkey_server:*:*:community:*:*:*:*:*

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
3.81%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2019-3911 · Feb 15, 2022
This CVE's current EPSS score of 0.0381 is in the 95th percentile among its peer group of 26,221 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

Vendor Patches (3)

dogukanurkervendor investigatingvia llm_extracted
posthogvendor investigatingvia llm_extracted
qlikvendor investigatingvia llm_extracted

Vendor Advisories (3)

dogukanurkerllm-dogukanurker-e6de585f08b942f3MEDIUM

LabKey Server Community Edition Multiple Vulnerabilities

Jan 24, 2019
qlikllm-qlik-51c9abbc9b00bba0MEDIUM

LabKey Server Community Edition Multiple Vulnerabilities

Jan 24, 2019
posthogllm-posthog-6da5340122e224d3MEDIUM

LabKey Server Community Edition Multiple Vulnerabilities

Jan 24, 2019

References

tenable.com / security/research/tra-2019-03
ExploitThird Party Advisory