How severe is CVE-2020-11436?

CVE-2020-11436 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11436 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11436?

CVE-2020-11436 affects Librehealth Librehealth Ehr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11436?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-11436 published?

CVE-2020-11436 was published on 2020-07-15 and last updated on 2026-06-17.

CVE-2020-11436

CVE-2020-11436 is a critical-severity vulnerability in Librehealth Librehealth Ehr with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
CVSS v2: 6.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Librehealth Librehealth Ehr
Published: 2020-07-15
Last modified: 2026-06-17

Description

LibreHealth EMR v2.0.0 is vulnerable to XSS that results in the ability to force arbitrary actions on behalf of other users including administrators.

Frequently asked questions

What is CVE-2020-11436?: LibreHealth EMR v2.0.0 is vulnerable to XSS that results in the ability to force arbitrary actions on behalf of other users including administrators.
How severe is CVE-2020-11436?: CVE-2020-11436 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11436 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11436?: CVE-2020-11436 affects Librehealth Librehealth Ehr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11436?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-11436 published?: CVE-2020-11436 was published on 2020-07-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:librehealth:librehealth_ehr:2.0.0:*:*:*:*:*:*:*

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