XSS in IBM Aix
CVE-2026-1243
IBM Content Navigator 3.0.15, 3.1.0, and 3.2.0 is vulnerable to cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (9.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- IBM Aix
- IBM Content Navigator — versions 3.0.15, 3.1.0, 3.2.0
- IBM Content Navigator — versions 3.0.15, 3.1.0, 3.2.0
- Linux Kernel
- Microsoft Windows
Weakness classification (CWE)
References
- www.ibm.com/support/pages/node/7268006 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-1243?
- CVE-2026-1243 is a medium-severity vulnerability in IBM Aix, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-04-02.
- How severe is CVE-2026-1243?
- Medium severity. CVSS v3 base score is 5.4 out of 10.