CVE-2026-72558: CiviCRM 0 through 6.18.alpha1

CVE-2026-72558. CVSS 3.1 base score 8.8 (HIGH, Source advisory). EPSS 0.0043 (percentile 0.36163), scored 22-Oct-2026.

Affected technology

CiviCRM · 0 through 6.18.alpha1
CiviCRM

Description’s affected range: through 6.18.alpha1

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An attacker with staff-level access can exfiltrate all database contents including donor and member records. Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high.

Published 24-Oct-2026 01:43 UTC

CWE: CWE-89
CCR priority: 35.3 /100 (P4)
CVSS 3.1: 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
EPSS: 0.0043 · percentile 0.36163 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-72558.html