CVE-2023-4347 Cross-site Scripting (XSS) - Reflected in librenms/librenms

What is CVE-2023-4347?

CVE-2023-4347 is a high-severity cross-site scripting vulnerability in Librenms Librenms, published on 15 Aug 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 librenms/librenms prior to 23.8.0.

Weakness: CWE-79

Which versions are affected by CVE-2023-4347?

2 open source packages ship an affected version, including librenms/librenms. It affects 1 product.

Products include Librenms Librenms.

How do I fix CVE-2023-4347?

Upgrade librenms/librenms to 23.8.0 or later.

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-2023-4347 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4347 exists.

Other vulnerabilities in Librenms Librenms

• CVE-2023-4982 Cross-site Scripting (XSS) - Stored in librenms/librenms Critical 9.8
• CVE-2022-29712 Command injection in librenms Critical 9.8
• CVE-2021-44278 Path traversal in librenms/librenms Critical 9.8
• CVE-2019-10665 LibreNMS Information Disclosure Critical 9.8
• CVE-2018-20434 LibreNMS arbitrary OS commands execution Critical 9.8

All Librenms Librenms vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-m6pf-cm3f-7876.