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CVE-2020-24301

17
FAUCET Score

CVE-2020-24301 describes a cross-site scripting (XSS) vulnerability in HAPI FHIR Testpage Overlay versions 5.0.0 and below, allowing arbitrary JavaScript execution via a specially crafted URL. This medium-severity vulnerability (CVSS 6.1) requires user interaction and network access, with a low impact on confidentiality and integrity. While no public exploits or active exploitation have been observed, and community discussion is minimal, the vulnerability is categorized under CWE-79 (Improper Neutralization of Input During Web Page Generation).

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.0.0CPE matchmatch criteria
cpe:2.3:a:hapifhir:testpage_overlay:*:*:*:*:*:*:*:*

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
0.95%
Probability of exploitation in next 30 days
EPSS Percentile
57.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0095 is in the 70th percentile among its peer group of 26,234 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 Advisories (1)

redhatCVE-2020-24301Moderate

hapi-fhir: XSS vulnerability in Testpage Overlay via specially crafted URL

Aug 8, 2020

References

github.com / jamesagnew/hapi-fhir/issues/2026
ExploitThird Party Advisory