Race Condition Affecting paymenter/paymenter package, versions <1.5.7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-PAYMENTERPAYMENTER-20186844
- published28 Sept 2026
- disclosed18 Sept 2026
- creditUnknown
Introduced: 18 Sep 2026
NewCVE-2026-71537 (opens in a new tab)How to fix?
Upgrade paymenter/paymenter to version 1.5.7 or higher.
Overview
Affected versions of this package are vulnerable to Race Condition via the doUpgrade process. An attacker can inflate their credit balance by sending multiple concurrent downgrade requests, resulting in multiple refunds for a single legitimate downgrade.