Foxit pdfonline cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Foxit pdfonline. This affects an unknown part. Performing a manipulation results in cross site scripting. This vulnerability is identified as CVE-2025-66502. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Foxit pdfonline (version now known). This affects some unknown processing. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Page Templates feature. A crafted payload can be stored as the template name, which is later rendered into the DOM without proper sanitization. As a result, the injected script executes each time the affected PDF is loaded.

The weakness was released by Thisis0xczar. The advisory is shared at foxit.com. This vulnerability is uniquely identified as CVE-2025-66502 since 12/03/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-204458). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

CNA Base Score: 6.3
CNA Vector (Foxit): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/03/2025 CVE reserved
12/19/2025 +16 days Advisory disclosed
12/19/2025 +0 days VulDB entry created
12/24/2025 +5 days VulDB entry last update

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: foxit.com
Researcher: Thisis0xczar
Status: Confirmed

CVE: CVE-2025-66502 (🔒)
GCVE (CVE): GCVE-0-2025-66502
GCVE (VulDB): GCVE-100-337581
EUVD: 🔒

Entryinfo

Created: 12/19/2025 09:13
Updated: 12/24/2025 09:09
Changes: 12/19/2025 09:13 (61), 12/19/2025 11:46 (1), 12/24/2025 09:09 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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