Privilege escalation in Otrs

CVE-2026-48210

An improper default configuration in OTRS 2026.3.1 causes ticket article forwarding actions to enforce the “Is visible for customer” flag by default and prevent users from disabling it via the UI. This leads to unintended exposure of internal ticket information to the External Frontend This issue affects OTRS 2026.3.1

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (21.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-48210: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Otrs — versions 2026.3.1
  • Otrs Ag — versions 2026.3.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-48210?
CVE-2026-48210 is a medium-severity vulnerability in Otrs, classified under Information Disclosure. CVSS score: 5.7/10. Published 2026-05-31.
How severe is CVE-2026-48210?
Medium severity. CVSS v3 base score is 5.7 out of 10.