How severe is CVE-2026-39328?

CVE-2026-39328 has a CVSS 3.x base score of 8.9, rated high 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 low.

Is CVE-2026-39328 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-39328?

CVE-2026-39328 affects Churchcrm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-39328?

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.

Does CVE-2026-39328 have an EU (EUVD) identifier?

Yes. CVE-2026-39328 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19823.

When was CVE-2026-39328 published?

CVE-2026-39328 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-39328

CVE-2026-39328 is a high-severity vulnerability in Churchcrm with a CVSS 3.x base score of 8.9. 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 8.9)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19823
Weakness: CWE-79
Affected product: Churchcrm
Published: 2026-04-07
Last modified: 2026-06-17

Description

ChurchCRM is an open-source church management system. Prior to 7.1.0, a stored cross-site scripting vulnerability exists in ChurchCRM's person profile editing functionality. Non-administrative users who have the EditSelf permission can inject malicious JavaScript into their Facebook, LinkedIn, and X profile fields. Due to a 50-character field limit, the payload is distributed across all three fields and chains their onfocus event handlers to execute in sequence. When any user, including administrators, views the attacker's profile, their session cookies are exfiltrated to a remote server. This vulnerability is fixed in 7.1.0.

Frequently asked questions

What is CVE-2026-39328?: ChurchCRM is an open-source church management system. Prior to 7.1.0, a stored cross-site scripting vulnerability exists in ChurchCRM's person profile editing functionality. Non-administrative users who have the EditSelf permission can inject malicious JavaScript into their Facebook, LinkedIn, and X profile fields. Due to a 50-character field limit, the payload is distributed across all three fields and chains their onfocus event handlers to execute in sequence. When any user, including administrators, views the attacker's profile, their session cookies are exfiltrated to a remote server. This vulnerability is fixed in 7.1.0.
How severe is CVE-2026-39328?: CVE-2026-39328 has a CVSS 3.x base score of 8.9, rated high 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 low.
Is CVE-2026-39328 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-39328?: CVE-2026-39328 affects Churchcrm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-39328?: 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.
Does CVE-2026-39328 have an EU (EUVD) identifier?: Yes. CVE-2026-39328 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19823.
When was CVE-2026-39328 published?: CVE-2026-39328 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://github.com/ChurchCRM/CRM/security/advisories/GHSA-fcp5-pwvj-v7xm

Affected products (1)

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

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