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CVE-2019-3923

20
FAUCET Score

CVE-2019-3923 describes a stored cross-site scripting (XSS) vulnerability in Nessus versions 8.2.1 and earlier, stemming from insufficient input validation. An authenticated, remote attacker could exploit this by injecting malicious script code into a user's browser session through a crafted request. This vulnerability is rated Medium severity (CVSS 5.4), requiring user interaction and authenticated access, with potential impacts on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE. Tenable released Nessus 8.2.2 to patch this flaw.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.2.1CPE matchmatch criteria
cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 90th percentile among its peer group of 15,239 CVEs.

Social Chatter

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

Remediation

Remediation records are not available for this CVE.

References

tenable.com / security/tns-2019-01
Vendor Advisory