CVE-2026-7881
Concrete CMS 9.5.0 and below is vulnerable to IDOR in the Express Entry Detail block
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-639 |
| Vendor | concrete cms |
| Product | concrete cms |
| Published | May 21, 2026 |
| Last Updated | May 22, 2026 |
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Affected Versions
Concrete CMS / Concrete CMS
5.0 < 9.5.0
References
Credits
Tristan Madani