CVE-2023-26218 TIBCO Nimbus Reflected Cross-site Scripting (XSS) vulnerabilities

High 8.0 Published Updated

Reflected XSS in TIBCO Nimbus Web Client allows attackers to execute scripts on victims via social engineering.

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-2023-26218?

CVE-2023-26218 is a high-severity cross-site scripting vulnerability in TIBCO Nimbus, published on 29 Sep 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Web Client component of TIBCO Software Inc.'s TIBCO Nimbus contains easily exploitable Reflected Cross Site Scripting (XSS) vulnerabilities that allow a low privileged attacker to social engineer a legitimate user with network access to execute scripts targeting the affected system or the victim's local system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO Nimbus: versions 10.6.0 and below.

Weakness: CWE-79

Which versions are affected by CVE-2023-26218?

It affects 1 product.

Products include Tibco Nimbus.

How do I fix CVE-2023-26218?

No fix has been published for CVE-2023-26218 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-2023-26218 being exploited?

There is no known exploitation of CVE-2023-26218 in the wild and no public exploit code.

Sources

Also known as GHSA-7325-4mgw-rx85.

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