CVE-2026-1243 IBM Content Navigator is affected by , a Cross-Site Scripting (XSS) vulnerability

What is CVE-2026-1243?

CVE-2026-1243 is a medium-severity cross-site scripting vulnerability in IBM Content Navigator, published on 2 Apr 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2026-1243?

It affects 1 product.

Products include Ibm Content Navigator.

How do I fix CVE-2026-1243?

No fix has been published for CVE-2026-1243 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-1243 being exploited?

There is no known exploitation of CVE-2026-1243 in the wild and no public exploit code.

Other vulnerabilities in IBM Content Navigator

• CVE-2018-1364 XML external entity in Content Navigator High 8.2
• CVE-2018-1366 Other in Content Navigator High 7.8
• CVE-2022-43581 IBM Content Navigator code execution High 7.5
• CVE-2019-4092 Open redirect in Content Navigator Medium 6.8
• CVE-2021-29714 Denial of service in Content Navigator Medium 6.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x8pv-gc6r-gh6r.