CVE-2025-66501: Foxit pdfonline.foxit.com Stored Cross-Site Scripting in eSign Predefined Text Feature
Foxit Software Inc. · pdfonline.foxit.com
Affected: Foxit Software Inc. pdfonline.foxit.com · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 7% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Foxit Software Inc. · pdfonline.foxit.combefore 2025‑12‑01
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Cross-site Scripting
- Vendor
- Foxit Software Inc.
- Published
- December 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-66501 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.