{"id":"CVE-2026-103310","title":"PayHere Payment Gateway 2.4.0 - 2.4.5 - Unauthenticated Payment Bypass via Unverified Payment Notification","summary":"The PayHere Payment Gateway WordPress plugin from 2.4.0 through 2.4.5 does not verify the authenticity of payment notifications when the merchant secret is unset, which is the default state, allowing unauthenticated attackers to forge a …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-345"],"product":"PayHere Payment Gateway","affected":["payhere_payment_gateway >= 2.4.0 <= 2.4.5"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-02T21:20:19.116103Z"},"published":"2026-11-02","updated":"2026-11-02","sourceUpdated":"2026-11-02T21:20:32.860Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103310","references":[{"url":"https://wpscan.com/vulnerability/f3b66147-5910-4901-b595-12a5b1db5f8b/"}],"tags":["cve.org"],"epss":0.00114,"epssPercentile":0.01514,"ingestedAt":"2026-11-05T19:30:42.857Z","slug":"CVE-2026-103310","body":"## Overview\n\nThe PayHere Payment Gateway WordPress plugin from 2.4.0 through 2.4.5 does not verify the authenticity of payment notifications when the merchant secret is unset, which is the default state, allowing unauthenticated attackers to forge a payment confirmation and mark any order as paid without payment.\n\n## Affected\n\n- `payhere_payment_gateway >= 2.4.0 <= 2.4.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}