CVE-2019-16890

FAUCET Score

CVE-2019-16890 describes a cross-site scripting (XSS) vulnerability in Halo version 1.1.0, specifically through a crafted authorUrl within JSON data sent to the api/content/posts/comments endpoint. This medium-severity vulnerability (CVSS 5.4) requires low privileges and user interaction, allowing an attacker to inject malicious scripts that could lead to limited confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		1.1.0CPE matchmatch criteria	cpe:2.3:a:halo:halo:1.1.0:::::::*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/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

3.1

Exploit Intelligence

EPSS Score

0.66%

Probability of exploitation in next 30 days

EPSS Percentile

47.9%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0066 is in the 80th 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference

View patch

References

github.com / halo-dev/halo/issues/311

ExploitPatchThird Party Advisory