CVE-2024-49343 IBM Informix Dynamic Server HTML injection

Medium 5.4 Published 28 Jul 2025 Updated 28 Jul 2025

Remote attackers can inject malicious HTML into IBM Informix Dynamic Server, leading to script execution in victims' browsers.

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-2024-49343?

CVE-2024-49343 is a medium-severity cross-site scripting vulnerability in Ibm Informix Dynamic Server, published on 28 Jul 2025. 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 Informix Dynamic Server 12.10 and 14.10 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting site.

Weakness: CWE-80

Which versions are affected by CVE-2024-49343?

It affects 1 product.

Products include Ibm Informix Dynamic Server.

How do I fix CVE-2024-49343?

No fix has been published for CVE-2024-49343 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-2024-49343 being exploited?

There is no known exploitation of CVE-2024-49343 in the wild and no public exploit code.

All Ibm Informix Dynamic Server vulnerabilities

Sources

Also known as GHSA-fh3c-gm34-6mj5.