CVE-2019-20903

FAUCET Score

CVE-2019-20903 describes a Cross-Site Scripting (XSS) vulnerability in the hyperlinks functionality of Atlassian's atlaskit/editor-core, affecting versions prior to 113.1.5. This medium-severity vulnerability (CVSS 5.4) allows authenticated attackers to inject arbitrary HTML or JavaScript into link targets, requiring user interaction to trigger. While there is no known active exploitation, public exploit code, or Metasploit/Nuclei modules, the vulnerability has garnered some community discussion and media coverage, indicating a degree of awareness.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 113.1.5CPE matchmatch criteria	cpe:2.3:a:atlassian:editor-core::::::node.js::*

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

1.13%

Probability of exploitation in next 30 days

EPSS Percentile

62.9%

Percentile rank of EPSS score among Peer Group

As of 2026-07-25

Model: v2026.06.15

This CVE's current EPSS score of 0.0113 is in the 94th percentile among its peer group of 15,224 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

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

Remediation

Vendor Advisories (1)

npmGHSA-p5ch-w78f-xh44medium

Cross-site scripting in @atlaskit/editor-core

Feb 10, 2022

References

atlaskit.atlassian.com / packages/editor/editor-core/changelog/113.1.5

Release NotesVendor Advisory

confluence.atlassian.com / pages/viewpage.action

Vendor Advisory

npmjs.com / package/%40atlaskit/editor-core