{"id":"CVE-2026-87838","state":"PUBLISHED","title":"Wava Payment 0.3.1 - 0.3.9 - Unauthenticated Merchant Credential Overwrite via Install Webhook","description":"The Wava Payment Plugin WordPress plugin before 0.3.10 does not perform any authorisation, nonce or origin verification on one of its public REST endpoints, allowing unauthenticated attackers to overwrite the stored credential that identifies the merchant account the store's payments are created against, to force the integration into a verified state the site owner never completed, and to remove the payment method from the store's checkout.","publishedAt":"2026-10-21T06:00:25.381Z","updatedAt":"2026-10-21T10:35:01.578Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Wava Payment Plugin"],"affected":[{"vendor":"Unknown","product":"Wava Payment Plugin","defaultStatus":"unaffected","versions":[{"version":"0.3.1","status":"affected","lessThan":"0.3.10","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/96f247d7-3007-4728-9cd7-0ea52c96edb3/"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/87xxx/CVE-2026-87838.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-87838","state":"PUBLISHED","datePublished":"2026-10-21T06:00:25.381Z","dateUpdated":"2026-10-21T10:35:01.578Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-09-09T11:21:12.222Z"},"containers":{"cna":{"title":"Wava Payment 0.3.1 - 0.3.9 - Unauthenticated Merchant Credential Overwrite via Install Webhook","descriptions":[{"lang":"en","value":"The Wava Payment Plugin WordPress plugin before 0.3.10 does not perform any authorisation, nonce or origin verification on one of its public REST endpoints, allowing unauthenticated attackers to overwrite the stored credential that identifies the merchant account the store's payments are created against, to force the integration into a verified state the site owner never completed, and to remove the payment method from the store's checkout."}],"affected":[{"vendor":"Unknown","product":"Wava Payment Plugin","defaultStatus":"unaffected","versions":[{"version":"0.3.1","status":"affected","lessThan":"0.3.10","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/96f247d7-3007-4728-9cd7-0ea52c96edb3/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-10-21T06:00:25.381Z"},"credits":[{"lang":"en","value":"Pablo González Pérez","type":"finder"},{"lang":"en","value":"Francisco José Ramírez Vicente and Iñigo Sánchez Enciso","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2026-87838","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-21T10:15:33.993815Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","type":"CWE","description":"CWE-862 Missing Authorization"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-21T10:35:01.578Z"}}]}}}