PayHere Payment Gateway
CVE-2026-103310: 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 unse
CVE-2026-103310 Nov 2, 2026 Source: Vendor
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 payment confirmation and mark any order as paid without payment.
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-103310
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CVE-2026-103310
BR2026-0000-041127
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Credited as Naoki Kawahigashi