{"id":"CVE-2026-34748","sourceIdentifier":"security-advisories@github.com","published":"2026-04-01T20:16:27.040","lastModified":"2026-06-17T10:39:33.280","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Payload is a free and open source headless content management system. Prior to version 3.78.0 in @payloadcms/next, a stored Cross-Site Scripting (XSS) vulnerability existed in the admin panel. An authenticated user with write access to a collection could save content that, when viewed by another user, would execute in their browser. This issue has been patched in version 3.78.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"payloadcms","product":"payload","versions":[{"version":"< 3.78.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":5.8}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-02T15:49:07.409157Z","id":"CVE-2026-34748","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:payloadcms:payload:*:*:*:*:*:node.js:*:*","versionEndExcluding":"3.78.0","matchCriteriaId":"225E9788-C205-479C-B3EE-7A57A468929F"}]}]}],"references":[{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-mmxc-95ch-2j7c","source":"security-advisories@github.com","tags":["Mitigation","Vendor Advisory"]}]}