GHSA-7wwh-xcc3-9fcg

Suggest an improvement
Source
https://github.com/advisories/GHSA-7wwh-xcc3-9fcg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-7wwh-xcc3-9fcg/GHSA-7wwh-xcc3-9fcg.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-7wwh-xcc3-9fcg
Aliases
  • CVE-2026-44583
Published
2026-06-22T20:28:29Z
Modified
2026-06-22T20:45:08.117229001Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Paymenter has Blind Unauthenticated SSRF on the Paypal gateway module
Details

Summary

The PayPal webhook endpoint /extensions/paypal/webhook processes the PAYPAL-CERT-URL HTTP header without validation, allowing attackers to control server-side HTTP request destinations.

Technical details:

The /extensions/paypal/webhook endpoint processes incoming webhook requests and trusts the value of the PAYPAL-CERT-URL HTTP header without validation.

This value is passed directly into a server-side HTTP request via file_get_contents, allowing attackers to control the destination of the request. No allowlist, validation, or signature verification is applied to the header before usage.

As a result, the application can be coerced into performing HTTP requests to attacker-controlled or internal network destinations.

Impact

This vulnerability allows remote unauthenticated attackers to induce server-side HTTP GET requests to arbitrary external or internal endpoints.

Depending on network configuration, this may lead to:

  • Blind SSRF to external attacker-controlled systems
  • Potential access to internal network services

No direct response data is returned to the attacker (blind SSRF), but the issue may still enable sensitive network probing or data exfiltration via side channels.

Database specific 
{
    "github_reviewed_at": "2026-06-22T20:28:29Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-918"
    ],
    "github_reviewed": true,
    "nvd_published_at": null
}
References

Affected packages

Packagist / paymenter/paymenter

Package

Name
paymenter/paymenter
Purl
pkg:composer/paymenter%2Fpaymenter

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.0

Affected versions

0.*
0.1
0.1.1
0.1.2
0.1.3
0.2
0.2.1
v0.*
v0.3
v0.4
v0.4.1
v0.5
v0.5.1
v0.5.2
v0.5.3
v0.6
v0.7
v0.7.1
v0.8
v0.8.1
v0.8.2
v0.9
v0.9.1
v0.9.2
v0.9.3
v0.9.4
v0.9.5
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.1.0
v1.1.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-7wwh-xcc3-9fcg/GHSA-7wwh-xcc3-9fcg.json"