Technical impact
The flaw exists in the function that creates rack links in phpIPAM. By manipulating the deviceid argument, an attacker can inject arbitrary JavaScript into the client’s browser when the page is rendered. This type of cross‑site scripting allows the attacker to conduct session hijacking, data theft, or malicious code execution within the victim’s session.
Affected Systems
Any installation of phpIPAM running the 1.8.3 release or earlier is affected. The vulnerability resides in the app/tools/racks/show‑rack‑popup.php component of the Rack Link Creation feature.
Risk and Exploitability
The CVSS score of 5.3 indicates a moderate severity. The EPSS score is not available and the vulnerability is not listed in the CISA KEV catalog, suggesting that widespread exploitation is not yet documented. The exploit requires only a crafted HTTP request to the create_rack_link endpoint, making it remotely exploitable over the network. Attackers with access to the web interface or who can influence traffic to the target can immediately abuse the flaw.