Secuno
ENNL
Book demo

CVE-2026-35573

Churchcrm remote code execution

9.1 CRITICALPublic exploitEPSS 0.92%
  1. Published7 Apr 2026

Description

ChurchCRM is an open-source church management system. Prior to 6.5.3, a path traversal vulnerability in ChurchCRM's backup restore functionality allows authenticated administrators to upload arbitrary files and achieve remote code execution by overwriting Apache .htaccess configuration files. The vulnerability exists in src/ChurchCRM/Backup/RestoreJob.php. The $rawUploadedFile['name'] parameter is user-controlled and allows uploading files with arbitrary names to /var/www/html/tmp_attach/ChurchCRMBackups/. This vulnerability is fixed in 6.5.3.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

Churchcrm< 6.5.3

Remediation

Fixed in
Churchcrm≥ 6.5.3

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-599768.1
ConvertX is a self-hosted file conversion service. Prior to 0.18.0, the ImageMagick…
CVE-2026-859538.5
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7…
CVE-2026-783558.7
A path traversal vulnerability in the OTRS SendSupportBundle functionality allows an…
CVE-2026-876908.8
The Metasploit Framework post module post/apple_ios/gather/ios_image_gather is affected…
CVE-2026-1089028.1
pH7Builder (pH7 Social Dating CMS) before 18.5.0 contains a path traversal…
CVE-2026-1040289.8
The Anton Extensions WordPress plugin through 1.2.2 does not perform any capability…

Frequently asked

Is CVE-2026-35573 being actively exploited?

CVE-2026-35573 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.92%.

How severe is CVE-2026-35573?

CVE-2026-35573 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.92% probability of exploitation.

Which products are affected by CVE-2026-35573?

Affected products include Churchcrm.

How do I fix CVE-2026-35573?

Upgrade affected software to a fixed version, for example Churchcrm 6.5.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-35573 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.