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01 Record

CVE-2021-25921

In OpenEMR, versions 2.7.3-rc1 to 6.0.0 are vulnerable to Stored Cross-Site-Scripting (XSS) due to user input not being validated properly in the `Allergies` section. An attacker could lure an admin

MediumPUBLISHEDCNA: Mend
CNA base score5.4 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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02 Description

In OpenEMR, versions 2.7.3-rc1 to 6.0.0 are vulnerable to Stored Cross-Site-Scripting (XSS) due to user input not being validated properly in the `Allergies` section. An attacker could lure an admin

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
91.10% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 99.8% of scored records. A rank, not a probability.
NVD base score
5.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-03-22 19:26Z5 YR AGO
Last updated
2025-04-30 17:35Z1 YR AGO
Reserved
2021-01-22
Assigning CNA
Mend
Record state
PUBLISHED
Severity
Medium (CVSS 5.4)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.1
Document digest
9b6745e2dcfe1ababcdbec42fca324e4eb3d76a9a358c26de662f0b2e10465b1

05 Affected products

VendorProductVersionsPlatforms
n/aopenemr2.7.3-rc1, 2.8.0, 2.8.1, 2.8.2, 2.8.3, 2.9.0, 3.0.0, 3.0.1, 3.1.0, 3.2.0, 4.0.0, 4.1.0, 4.1.1, 4.1.2, 4.1.2.3, 4.1.2.6, 4.1.2.7, 4.2.0, 4.2.0.3, 4.2.1, 4.2.2, 5.0.0, 5.0.0.5, 5.0.0.6, 5.0.1, 5.0.1.1, 5.0.1.2, 5.0.1.3, 5.0.1.4, 5.0.1.5, 5.0.1.6, 5.0.1.7, 5.0.2, 5.0.2.1, 5.0.2.2, 5.0.2.3, 5.0.2.4, 6.0.0—

06 References