How severe is CVE-2023-26839?

CVE-2023-26839 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-26839 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26839?

CVE-2023-26839 affects Churchcrm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26839?

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

When was CVE-2023-26839 published?

CVE-2023-26839 was published on 2023-04-25 and last updated on 2026-06-17.

CVE-2023-26839

CVE-2023-26839 is a medium-severity vulnerability in Churchcrm with a CVSS 3.x base score of 4.3. 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Churchcrm
Published: 2023-04-25
Last modified: 2026-06-17

Description

A cross-site request forgery (CSRF) vulnerability in ChurchCRM v4.5.3 allows attackers to edit information for existing people on the site.

Frequently asked questions

What is CVE-2023-26839?: A cross-site request forgery (CSRF) vulnerability in ChurchCRM v4.5.3 allows attackers to edit information for existing people on the site.
How severe is CVE-2023-26839?: CVE-2023-26839 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-26839 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26839?: CVE-2023-26839 affects Churchcrm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26839?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-26839 published?: CVE-2023-26839 was published on 2023-04-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:churchcrm:churchcrm:4.5.3:*:*:*:*:*:*:*

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