CVE-2025-66521 is a stored cross-site scripting (XSS) vulnerability in pdfonline.foxit.com, specifically within the Trusted Certificates feature of Foxit PDF Editor Cloud. An attacker can inject a malicious script as a certificate name, which then executes whenever the Trusted Certificates view is loaded. This medium-severity vulnerability (CVSS 5.4) requires low privileges and user interaction, with potential for limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2025-12-01CPE matchmatch criteria | cpe:2.3:a:foxit:pdf_editor_cloud:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.