CVE-2025-66501
Foxit pdfonline.foxit.com Stored Cross-Site Scripting in eSign Predefined Text Feature
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.3EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
19 Dec 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Predefined Text feature of the Foxit eSign section. A crafted payload can be stored via the Identity “First Name” field, which is later rendered into the DOM without proper sanitization. As a result, the injected script may execute when predefined text is used or when viewing document properties.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Affected products
Foxit Software Inc. · pdfonline.foxit.comWant to know if your infrastructure is exposed to this?
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