How severe is CVE-2023-25440?

CVE-2023-25440 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-25440 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-25440?

CVE-2023-25440 affects Civicrm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25440?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-25440 published?

CVE-2023-25440 was published on 2023-05-23 and last updated on 2026-06-17.

CVE-2023-25440

CVE-2023-25440 is a medium-severity vulnerability in Civicrm with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Civicrm
Published: 2023-05-23
Last modified: 2026-06-17

Description

Stored Cross Site Scripting (XSS) vulnerability in the add contact function CiviCRM 5.59.alpha1, allows attackers to execute arbitrary code in first/second name field.

Frequently asked questions

What is CVE-2023-25440?: Stored Cross Site Scripting (XSS) vulnerability in the add contact function CiviCRM 5.59.alpha1, allows attackers to execute arbitrary code in first/second name field.
How severe is CVE-2023-25440?: CVE-2023-25440 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-25440 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-25440?: CVE-2023-25440 affects Civicrm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25440?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-25440 published?: CVE-2023-25440 was published on 2023-05-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:civicrm:civicrm:5.59:alpha1:*:*:*:*:*:*

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