CVE-2025-66500 describes a stored cross-site scripting (XSS) vulnerability in webplugins.foxit.com, specifically affecting Foxit PDF Editor Cloud. The flaw stems from a postMessage handler that inadequately validates message origins, allowing an attacker to inject and execute arbitrary JavaScript by manipulating the script source. This vulnerability is rated Medium severity (CVSS 5.4), indicating a network-based attack with low complexity, requiring user interaction and low privileges. Successful exploitation could lead to limited confidentiality and integrity impacts, but not availability. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. The vulnerability has garnered minimal community discussion and media coverage, suggesting low public awareness.
| 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
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.