CVE-2021-25921

FAUCET Score

CVE-2021-25921 is a Stored Cross-Site Scripting (XSS) vulnerability affecting OpenEMR versions 2.7.3-rc1 through 6.0.0, stemming from insufficient input validation in the "Allergies" section. With a CVSS score of 5.4 (Medium), this vulnerability requires a low-privileged attacker to trick an authenticated user into entering a malicious payload, leading to potential client-side script execution. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 2.7.3, <= 6.0.0CPE matchmatch criteria	cpe:2.3:a:open-emr:openemr::::::::

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

91.10%

Probability of exploitation in next 30 days

EPSS Percentile

99.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.9110 is in the 100th 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 / openemr/openemr/commit/0fadc3e592d84bc9dfe9e0403f8bd6e3c7d8427f

PatchThird Party Advisory

whitesourcesoftware.com / vulnerability-database/CVE-2021-25921

Third Party Advisory