CVE-2026-11712
IBM WebSphere Application Server is affected by a cross-site scripting vulnerability
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.
- 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 19:45Z4 MO AGO
- Last updated
- 2026-07-01 13:24Z4 MO AGO
- Reserved
- 2026-06-09
- 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
- 15b85e23b35d90a4f0bd7849dc718303ca54d552d904b8216ad6641802cc0ea2
05 Affected products
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.