SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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.

MEDIUM 5.4EPSS 91.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 91.1%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

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 to enter a malicious payload and by that initiate the exploit.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
91.10% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
open-emr/openemr
Source
vulnerabilitylab@mend.io
EPSS trend
0%48%95%26 October 2026: 91.10%26 October 202626 October 2026

EPSS 91.1% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.