How severe is CVE-2023-23637?

CVE-2023-23637 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2023-23637 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23637?

CVE-2023-23637 affects Unistra Impatient. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23637?

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

When was CVE-2023-23637 published?

CVE-2023-23637 was published on 2023-01-17 and last updated on 2026-06-17.

CVE-2023-23637

CVE-2023-23637 is a high-severity vulnerability in Unistra Impatient with a CVSS 3.x base score of 7.6. 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: High (CVSS 3.x base score 7.6)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Unistra Impatient
Published: 2023-01-17
Last modified: 2026-06-17

Description

IMPatienT before 1.5.2 allows stored XSS via onmouseover in certain text fields within a PATCH /modify_onto request to the ontology builder. This may allow attackers to steal Protected Health Information.

Frequently asked questions

What is CVE-2023-23637?: IMPatienT before 1.5.2 allows stored XSS via onmouseover in certain text fields within a PATCH /modify_onto request to the ontology builder. This may allow attackers to steal Protected Health Information.
How severe is CVE-2023-23637?: CVE-2023-23637 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2023-23637 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23637?: CVE-2023-23637 affects Unistra Impatient. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23637?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-23637 published?: CVE-2023-23637 was published on 2023-01-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:unistra:impatient:*:*:*:*:*:*:*:*

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