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01 Record

CVE-2026-11708

IBM WebSphere Application Server is affected by a cross-site scripting vulnerability

CriticalPUBLISHEDCNA: ibm
CNA base score9.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

02 Description

IBM WebSphere Application Server is affected by a cross-site scripting vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.38% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 32.2% of scored records. A rank, not a probability.
NVD base score
9.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-25.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-06-30 19:47Z4 MO AGO
Last updated
2026-07-01 14:01Z4 MO AGO
Reserved
2026-06-08
Assigning CNA
ibm
Record state
PUBLISHED
Severity
Critical (CVSS 9.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.2
Document digest
d4ba55a3610e3398a9eb005cf37927abc284caf171fb6435fcd0d748847048b4

05 Affected products

VendorProductVersionsPlatforms

06 References

07 Remediation

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH71756. Attention: After installing the interim fix or fixpack, please follow the additional instructions provided in the interim fix link referenced below to complete the remediation. For IBM WebSphere Application Server traditional: For V9.0.0.0 through 9.0.5.28: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71756 https://www.ibm.com/support/pages/node/7278563 --OR-- · Apply Fix Pack 9.0.5.29 or later (targeted availability 3Q2026) For V8.5.0.0 through 8.5.5.30: · Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves PH71756 https://www.ibm.com/support/pages/node/7278563 and carefully follow the instructions for steps required after fix installation. --OR-- · Apply Fix Pack 8.5.5.31 or later (targeted availability 3Q2026) and carefully follow the instructions in PH71756 for steps required after fixpack installation. . Additional interim fixes may be available and linked off the interim fix download page.