What is CVE-2026-48248?

CVE-2026-48248 is a medium-severity vulnerability in Open Ises Tickets, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2026-05-21.

How severe is CVE-2026-48248?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Open Ises Tickets

CVE-2026-48248

Open ISES Tickets before 3.44.2 disables TLS certificate verification in incs/login.inc.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests issued during the login/au…

Vulnerability class: Improper Certificate Validation

EPSS: 0.000 (10.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Open Ises Tickets — versions 0

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-48248?: CVE-2026-48248 is a medium-severity vulnerability in Open Ises Tickets, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2026-05-21.
How severe is CVE-2026-48248?: Medium severity. CVSS v3 base score is 5.9 out of 10.