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VulnerabilityPublished

CVE-2026-11712: IBM WebSphere Application Server · Cross-site Scripting

Affects IBM WebSphere Application ServerSource CVE Database V5

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Not known to be exploited · CVSS 9.3 Critical.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Jun 2026

  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 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
IBMWebSphere Application ServerAffected
  • =9.0
  • =8.5
Fixed in–
Mavencom.ibm.websphere/websphere-application-serverpkg:maven/com.ibm.websphere/websphere-application-serverOther threatsAffected
  • =9.0
  • =8.5
Fixed in–

CPE configurations (4)

  • cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, restrict access to the administrative console help system to trusted users only and consider additional monitoring for suspicious activity involving the console. Avoid clicking on untrusted links or content that could trigger the vulnerability.

Description

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

References

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