Affects widely used IBM WebSphere middleware; admin console XSS could enable token theft and privilege abuse across many enterprises.
CVE-2026-11708
XSS in IBM WebSphere admin console could hijack sessions and steal data.
Is CVE-2026-11708 being exploited?
Not confirmed. CVE-2026-11708 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.38% probability of exploitation in the next 30 days.
How severe is CVE-2026-11708?
CVE-2026-11708 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-11708?
Yes. A fix has been recorded for CVE-2026-11708. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-11708 affect?
CVE-2026-11708 affects IBM WebSphere Application Server 9.0, IBM WebSphere Application Server 8.5. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-11708?
Patch promptly; restrict admin console access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Admin console XSS can steal admin cookies/tokens and perform privileged actions.
Patch when available
- affected9.0
- affected8.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.