cbcvebase.
CVE-2025-66521
published 2025-12-19

CVE-2025-66521: A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Trusted Certificates feature. A crafted payload can be injected as…

PriorityP425medium5.4CVSS 3.1
AVNACLPRLUIRSCCLILAN
EPSS
0.10%
1.0th percentile
A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Trusted Certificates feature. A crafted payload can be injected as the certificate name, which is later rendered into the DOM without proper sanitization. As a result, the injected script executes each time the Trusted Certificates view is loaded.

Affected

2 ranges
VendorProductVersion rangeFixed in
foxitpdf_editor_cloud< 2025-12-012025-12-01
foxit_software_incpdfonline.foxit.com
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.