CVE-2026-40484

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.9%, top 44% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the database backup restore functionality extracts uploaded archive contents and copies files from the Images/ directory into the web-accessible document root using recursiveCopyDirectory(), which performs no file extension filtering. An authenticated administrator can upload a crafted backup archive containing a PHP webshell inside the Images/ directory, which is then written to a publicly accessible path and executable via HTTP requests, resulting in remote code execution as the web server user. The restore endpoint also lacks CSRF token validation, enabling exploitation through cross-site request forgery targeting an authenticated administrator. This issue has been fixed in version 7.2.0.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
57(Track*)
EG Risk 57/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

April 18, 2026

Last Modified

April 20, 2026

Advisory Details (3)

Auto-updated Aug 1, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github.
github Patch Available🟡 PoC Available

Authenticated Remote Code Execution via Unrestricted PHP File Write in Database Restore Function · Advisory · ChurchCRM/CRM · GitHub

Affected: 7.2.0

https://github.com/ChurchCRM/CRM/security/advisories/GHSA-2932-77f9-62fx
github_pr Patch Available

security: validate extracted images in backup restore

Patch available: ChurchCRM/CRM 7.2.0-rc2 (PR #8610 merged 2026-04-11)

https://github.com/ChurchCRM/CRM/pull/8610
github_commit Patch Available

commit 68be1d12bc4c (ChurchCRM/CRM)

Patch available: ChurchCRM/CRM 7.2.0-rc2 (contains commit 68be1d12bc4c)

https://github.com/ChurchCRM/CRM/commit/68be1d12bc4cc1429575ae797ef05efe47030d39

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 27× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 154 total refreshes for this CVE.

  1. 2026-09-15 03:11 UTCEPSS rescore
  2. 2026-09-13 16:47 UTCEPSS rescore
  3. 2026-09-12 15:01 UTCEPSS rescore
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  11. 2026-09-02 16:08 UTCOSV refresh
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  1. 2026-08-17 13:47 UTCEPSS rescore
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  3. 2026-08-16 06:28 UTCEG score recompute
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  10. 2026-08-11 16:57 UTCEG score recompute
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  20. 2026-08-06 13:46 UTCEPSS rescore
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  22. 2026-08-05 19:17 UTCEPSS rescore
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  25. 2026-08-03 21:29 UTCEG score recompute
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  27. 2026-08-02 12:59 UTCEG score recompute
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  40. 2026-07-23 14:18 UTCEPSS rescore
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  42. 2026-07-23 03:11 UTCEG score recompute
  43. 2026-07-22 14:08 UTCEPSS rescore
  44. 2026-07-21 15:24 UTCEPSS rescore
  45. 2026-07-20 18:32 UTCOSV refresh
  46. 2026-07-20 17:08 UTCEPSS rescore
  47. 2026-07-19 14:31 UTCEPSS rescore
  48. 2026-07-19 02:29 UTCEPSS rescore
  49. 2026-07-18 10:04 UTCEPSS rescore
  50. 2026-07-16 17:03 UTCEPSS rescore
  51. 2026-07-15 16:57 UTCEPSS rescore
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  73. 2026-06-27 03:08 UTCEPSS rescore
  74. 2026-06-25 13:49 UTCEPSS rescore
  75. 2026-06-25 13:49 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-40484?
CVE-2026-40484 is a critical vulnerability published on April 18, 2026. ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the database backup restore functionality extracts uploaded archive contents and copies files from the Images/ directory into the web-accessible document root using recursiveCopyDirectory(), which performs no file…
When was CVE-2026-40484 disclosed?
CVE-2026-40484 was first published in the National Vulnerability Database on April 18, 2026, with the most recent update on April 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40484 actively exploited?
CVE-2026-40484 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 43.3% of all scored CVEs.
What is the CVSS score of CVE-2026-40484?
CVE-2026-40484 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-40484?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40484, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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