IBM i: Schwachstelle ermöglicht Cross-Site Scripting
WID-SEC-2026-3833 · first 09.10.2026 · updated 13.10.2026 · CVSS 8,3
What it is about
IBM i (früher bekannt als IBM iSeries oder IBM System i) ist ein Betriebssystem, das auf IBM Power Systems Servern läuft und für Geschäftsanwendungen entwickelt wurde. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in IBM i ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Cross-Site Scripting Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- IBM i 7.5
- IBM i 7.4
- IBM i 7.3
- IBM i 7.6
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Install the updates provided by the vendor; details in the sources below.
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
CVE: CVE-2026-93886
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.