In short
- CVE-2026-7881 is a MEDIUM (CVSS 4.3) vulnerability affecting concrete5/concrete5, concrete cms (concretecms).
- Chance of exploitation in the next 30 days (EPSS): 0.21%, higher than 10.4% of all vulnerabilities.
- Fix: update to 9.5.1 or later.
Description
Concrete CMS 9.5.0 and below is subject to Insecure Direct Object Reference (IDOR) in the Express Entry Detail block via the exEntryID parameter. This IDOR leads to unauthorized access to all Express form submissions. The Concrete CMS security team thanks Tristan Madani for reporting this issue.
NVD description
Concrete CMS 9.5.0 and below is subject to Insecure Direct Object Reference (IDOR) in the Express Entry Detail block via the exEntryID parameter. This IDOR leads to unauthorized access to all Express form submissions. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks Tristan Madani for reporting.
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