CVE-2025-66520
Title: Stored XSS in Foxit PDF Editor Cloud Portfolio feature
XSS
Proof Of Concept
No public PoC currently indexed for CVE-2025-66520.
CWE Category
CWE-79
Published Date
Dec 19, 2025
Modified Date
Dec 23, 2025
Exploit Status
Not Found
Score
6.3
CVSS v3.1
Exploit Probability (EPSS)
0.15%
Vulnerability Summary
CVE-2025-66520: A stored cross-site scripting (XSS) vulnerability exists in the Portfolio feature of the Foxit PDF Editor cloud (pdfonline.foxit.com). User-supplied SVG files are not properly sanitized or validated before being inserted into the HTML structure. As a result, embedded HTML or JavaScript within a crafted SVG may execute whenever the Portfolio file list is rendered.
Impacted Vendors
Reference Links
CVSS v3.1
Source Entity
[email protected]
Severity
MEDIUM
5.4
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v3.1
Source Entity
14984358-7092-470d-8f34-ade47a7658a2
Severity
MEDIUM
6.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Associated Attack Patterns (CAPEC)
Total: PatternsNo specific attack patterns mapped.
Likelihood
Severity
Page /
CVE-2025-66520 Exploits & PoCs (Proof Of Concept)
No public PoCs found in our database for this CVE.
MODIFIED
Vulnerability data or affected products updated.
MODIFIED
Vulnerability data updated via NVD.
PUBLISHED
Vulnerability first announced in NVD.
Attack Vector Matrix
Access Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
CVSS Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected Stack
No specific products linked.