CVE-2023-5891 Cross-site Scripting (XSS) - Reflected in pkp/pkp-lib

Medium 5.4 Published 1 Nov 2023 Updated 27 Feb 2025

Reflected Cross-Site Scripting in pkp-lib allows attackers to execute arbitrary scripts in victim browsers.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-5891?

CVE-2023-5891 is a medium-severity cross-site scripting vulnerability in pkp/pkp-lib, published on 1 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Cross-site Scripting (XSS) - Reflected in GitHub repository pkp/pkp-lib prior to 3.3.0-16.

Weakness: CWE-79

Which versions are affected by CVE-2023-5891?

It affects 1 product.

Products include Sfu Pkp Web Application Library.

How do I fix CVE-2023-5891?

No fix has been published for CVE-2023-5891 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-2023-5891 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-5891 exists.

Sources

Also known as GHSA-rhhg-49v7-xmqc.