CVE-2026-13258 IBM DataPower Gateway Cross-Site Scripting
An authenticated user can inject JavaScript into the IBM DataPower Gateway Web UI, potentially leading to credential disclosure within a trusted session.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-13258?
CVE-2026-13258 is a medium-severity cross-site scripting vulnerability in Ibm Datapower Gateway, published on 8 Oct 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 DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 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-2026-13258?
It affects 1 product.
Products include Ibm Datapower Gateway.
How do I fix CVE-2026-13258?
No fix has been published for CVE-2026-13258 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-2026-13258 being exploited?
There is no known exploitation of CVE-2026-13258 in the wild and no public exploit code.
Other vulnerabilities in Ibm Datapower Gateway
Sources
Also known as GHSA-rhhx-8r9g-6xr9.