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CVE-2026-11708

IBM Websphere Application Server cross-site scripting (XSS)

9.3 CRITICALEPSS 0.38%
  1. Published30 Jun 2026

Description

IBM WebSphere Application Server 9.0, and 8.5 is affected by a cross-site scripting vulnerability in the administrative console's integrated help system.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Affected products

IBM Websphere Application Server≥ 8.5.0.0 < 8.5.5.31 · ≥ 9.0.0.0 < 9.0.5.29

Remediation

Fixed in
IBM Websphere Application Server≥ 8.5.5.31

References

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Frequently asked

Is CVE-2026-11708 being actively exploited?

CVE-2026-11708 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.38%.

How severe is CVE-2026-11708?

CVE-2026-11708 has a CVSS 3.1 base score of 9.3, rated critical. EPSS estimates a 0.38% probability of exploitation.

Which products are affected by CVE-2026-11708?

Affected products include IBM Websphere Application Server.

How do I fix CVE-2026-11708?

Upgrade affected software to a fixed version, for example IBM Websphere Application Server 8.5.5.31 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-11708 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.