Multiple Cross-Site Scripting (XSS) issues were discovered in EPESI 1.8.1.1. The vulnerabilities exist due to insufficient filtration of user-supplied data (element, state, cat, id, cid) passed to the EPESI-master/modules/Utils/Watchdog/subscribe.php URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
Severity
CVSS 3.1
6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)