THREATPORT/VULNERABILITY/CVE-2021-41843
MEDIUM SEVERITY

CVE-2021-41843

Openemr vulnerability

CVSS
6.5
EPSS
13.7%
EPSS pct
96th
Exploited
No known
An authenticated SQL injection issue in the calendar search function of OpenEMR 6.0.0 before patch 3 allows an attacker to read data from all tables of the database via the parameter provider_id, as demonstrated by the /interface/main/calendar/index.php?module=PostCalendar&func=search URI.
Affected vendor
Open Emr
Affected product
Openemr
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2021-12-17

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 13.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2021-41843

  • Confirm whether Open Emr Openemr is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-41843.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-41843

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-41843 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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