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CVE-2026-7886

🗓️ 05 Jun 2026 19:50:55Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 8 Views

Concrete CMS 9.5.0 and earlier suffer IDOR via attachments in messages, bypassing file permissions.

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Refs
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ATTACKERKB
CVE-2026-7886
21 May 202621:18
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CVE-2026-7886
21 May 202622:41
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21 May 202600:00
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CVE-2026-7886 Concrete CMS 9.5.0 and below is vulnerable to IDOR in AddMessage/UpdateMessage via attachments[] parameter
21 May 202621:18
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EUVD
EUVD-2026-31360
22 May 202600:31
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Concrete CMS is vulnerable to IDOR in AddMessage/UpdateMessage
22 May 202600:31
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CVE-2026-7886
21 May 202622:16
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OSV
GHSA-P8P9-5953-H9JW Concrete CMS is vulnerable to IDOR in AddMessage/UpdateMessage
22 May 202600:31
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Positive Technologies
PT-2026-42556
21 May 202600:00
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05 Jun 2026 19:50Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.14.3
CVSS 42.3
EPSS0.00288
SSVC
8