ChurchCRM setup.php deserialization

published 2025-10-19 12 mo ago modified 2026-10-19 20 d ago also EUVD-2025-35002

cvss: 5.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

A vulnerability was found in ChurchCRM up to 5.18.0. This vulnerability affects unknown code of the file setup/routes/setup.php. Performing a manipulation of the argument DB_PASSWORD/ROOT_PATH/URL results in deserialization. The attack may be initiated remotely. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 12 mo ago (2025-10-20)

Exploit prediction

0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/uartu0/advisories/blob/main/churchcrm-setup-rce-2025.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.3	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	5.6	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	5.1	AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	2.9	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
NVD	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	2.0	5.1	AV:N/AC:H/Au:N/C:P/I:P/A:P

Affected products

n/a ChurchCRM

Classification

Weakness

CWE-502 Deserialization of Untrusted Data
CWE-20 Improper Input Validation

References

github.com /uartu0/advisories/blob/main/churchcrm-setup-rce-2025.md
exploit, third-party-advisory
vuldb.com /?id.329014
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.329014
signature, permissions-required, vdb-entry
vuldb.com /?submit.671083
third-party-advisory, vdb-entry

Sources

CVE List CVE-2025-11938
NVD CVE-2025-11938

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary