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CVE-2017-6099

20
FAUCET Score

CVE-2017-6099 describes a cross-site scripting (XSS) vulnerability in the GetAuthDetails.html.php component of the PayPal PHP Merchant SDK (version 3.9.1). This flaw allows remote attackers to inject arbitrary web script or HTML through the 'token' parameter. Rated Medium with a CVSS score of 6.1, exploitation requires user interaction (UI:R) and could lead to limited confidentiality and integrity impacts (C:L, I:L). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.9.1CPE matchmatch criteria
cpe:2.3:a:paypal:merchant-sdk-php:3.9.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.24%
Probability of exploitation in next 30 days
EPSS Percentile
66.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0124 is in the 79th percentile among its peer group of 26,209 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: paypal/merchant-sdk-phpFixed in: 3.12.0

Vendor Advisories (1)

composerGHSA-p4g7-wjhq-9r2hmedium

PayPal PHP Merchant SDK Cross-site scripting (XSS) vulnerability

May 14, 2022

References

github.com / paypal/merchant-sdk-php/issues/129
ExploitThird Party Advisory
securityfocus.com / bid/96432
Third Party AdvisoryVDB Entry