CVE-2023-34439 Cross-site scripting in Pleasanter

Medium 5.4 Published 6 Dec 2023 Updated 2 Aug 2024

An attacker can execute arbitrary scripts in users' browsers via stored XSS in the Pleasanter web application.

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-2023-34439?

CVE-2023-34439 is a medium-severity cross-site scripting vulnerability in Implem Inc. Pleasanter, published on 6 Dec 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

Pleasanter 1.3.47.0 and earlier contains a stored cross-site scripting vulnerability. If this vulnerability is exploited, an arbitrary script may be executed on the user's web browser.

Weakness: CWE-79

Which versions are affected by CVE-2023-34439?

It affects 1 product.

Products include Pleasanter Pleasanter.

How do I fix CVE-2023-34439?

No fix has been published for CVE-2023-34439 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-2023-34439 being exploited?

There is no known exploitation of CVE-2023-34439 in the wild and no public exploit code.

Sources

Also known as GHSA-qhpq-fh7h-m888.