---
cve: "CVE-2026-48247"
severity: "HIGH"
cvss: 8.2
epss: "17%"
vendor: "Open ISES"
kev: false
exploited: false
published: "2026-05-21 18:16:21"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T19:22:31+02:00"
---

# CVE-2026-48247

> 8.2 HIGH · 🧪 PoC

## Beschreibung

Open ISES Tickets before 3.44.2 disables TLS certificate verification in incs/functions.inc.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests for general-purpose outbound HTTPS requests issued by the shared helper functions. An attacker positioned on the network path between the server and the remote endpoint can present a forged certificate to intercept, monitor, or modify the request and response, including any API keys or session-bearing data in transit.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 1e3a89b17599ed2229e9258ca70f05a6a8b13dd0 (Commit)
- ecfeb406a016766cae81c749e14b5145a9f2dbff (Commit)

## Referenzen

- <https://github.com/openises/tickets/releases/tag/v3.44.2>
- <https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbff>
- <https://www.vulncheck.com/advisories/open-ises-tickets-disabled-tls-certificate-verification-in-incs-functions-inc-php>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-48247) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_