How severe is CVE-2026-35534?

CVE-2026-35534 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-2026-35534 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35534?

CVE-2026-35534 affects Churchcrm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35534?

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-2026-35534 have an EU (EUVD) identifier?

Yes. CVE-2026-35534 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19718.

When was CVE-2026-35534 published?

CVE-2026-35534 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-35534

CVE-2026-35534 is a high-severity vulnerability in Churchcrm 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: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19718
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 PersonView.php due to incorrect use of sanitizeText() as an output sanitizer for HTML attribute context. The function only strips HTML tags, it does not escape quote characters allowing an attacker to break out of the href attribute and inject arbitrary JavaScript event handlers. Any authenticated user with the EditRecords role can store the payload in a person's Facebook field. The XSS fires against any user who views that person's profile page, including administrators, enabling session hijacking and full account takeover. This vulnerability is fixed in 7.1.0.

Frequently asked questions

What is CVE-2026-35534?: ChurchCRM is an open-source church management system. Prior to 7.1.0, a stored cross-site scripting vulnerability exists in PersonView.php due to incorrect use of sanitizeText() as an output sanitizer for HTML attribute context. The function only strips HTML tags, it does not escape quote characters allowing an attacker to break out of the href attribute and inject arbitrary JavaScript event handlers. Any authenticated user with the EditRecords role can store the payload in a person's Facebook field. The XSS fires against any user who views that person's profile page, including administrators, enabling session hijacking and full account takeover. This vulnerability is fixed in 7.1.0.
How severe is CVE-2026-35534?: CVE-2026-35534 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-2026-35534 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35534?: CVE-2026-35534 affects Churchcrm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35534?: 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-2026-35534 have an EU (EUVD) identifier?: Yes. CVE-2026-35534 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19718.
When was CVE-2026-35534 published?: CVE-2026-35534 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://github.com/ChurchCRM/CRM/security/advisories/GHSA-pqp6-54p2-m66f

Affected products (1)

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

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