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CVE-2025-30191VulnerabilityPublished Updated

Open-Xchange GmbH · OX App Suite Security Advisory OXAS-ADV-2025-0002

Affects Open-Xchange GmbHSource GCVE Database

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Authoritative record:CVE-2025-30191· Medium 5.4

Not known to be exploited · CVSS 5.4 Medium.

Data as of 29 Oct 2026, 23:20 UTC

CVSS 3.1 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Oct 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Open-Xchange GmbH Open-Xchange GmbHAffected
  • =7.6.3-rev77
  • =8.35.111
Fixed in–

AI-suggested

Users of the affected versions should monitor Open-Xchange GmbH communications for updates and apply security best practices regarding email content handling. Since no cloud service is involved, remediation depends on vendor updates.

Description

A vulnerability in Open-Xchange GmbH's OX App Suite allows malicious email content to perform a redressing attack. This security advisory identifies the issue affecting specific versions 7.6.3-rev77 and 8.35.111. The vulnerability is classified as high severity due to the potential impact of such an attack.

References

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