---
cve: "CVE-2026-8347"
severity: "LOW"
cvss: 2.3
epss: "18%"
vendor: "Concrete CMS"
kev: false
exploited: false
published: "2026-05-22 15:16:26"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T11:46:02+02:00"
---

# CVE-2026-8347

> 2.3 LOW

## Beschreibung

Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-authorization-level in the Express association Reorder dialog.  This can cause Cross-entity state tampering with view-only permission on one entry. To be affected, a website has to be using express and relying on express entity ordering. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Winston Crooker for reporting.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 92bae566b9ec573cfb3017fcbb6db454a6586997 (Commit)

## Referenzen

- <https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-8347) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_