{"id":"EUVD-2026-36539","enisaUuid":"78c6fbed-f928-32a6-86cf-22f53514968b","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.79 and 9.9.1-alpha.4, the default file upload extension blocklist can be bypassed by appending a trailing dot to a filename whose extension would otherwise be blocked (e.g. poc.svg.). The trailing dot causes the extension parser to extract an empty string, which short-circuits the blocklist check, and the attacker-controlled Content-Type is forwarded to the storage adapter unchanged. Storage adapters that persist and serve the provided Content-Type (such as S3 or GCS) then serve the file with an active type such as image/svg+xml, enabling stored XSS when a victim opens the file URL. The default GridFS adapter is not affected because it sets X-Content-Type-Options: nosniff on responses. This issue has been patched in versions 8.6.79 and 9.9.1-alpha.4.","datePublished":"Jun 12, 2026, 6:34:38 PM","dateUpdated":"Jun 12, 2026, 8:01:13 PM","baseScore":2.1,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N","references":"https://github.com/parse-community/parse-server/security/advisories/GHSA-7wqv-xjf3-x35v\nhttps://github.com/parse-community/parse-server/pull/10489\nhttps://github.com/parse-community/parse-server/pull/10490\n","aliases":"CVE-2026-53724\nGHSA-7wqv-xjf3-x35v\n","assigner":"GitHub_M","epss":0.28,"enisaIdProduct":[{"id":"02de7028-49c2-3e87-92e5-5892a5c71cbb","product":{"name":"parse-server","vendor":{"name":"parse-community"}},"product_version":"9.0.0, \u003c 9.9.1-alpha.4"},{"id":"84361bda-853e-36df-9756-87d231904f10","product":{"name":"parse-server","vendor":{"name":"parse-community"}},"product_version":"\u003c 8.6.79"}],"enisaIdVendor":[{"id":"71010d92-0100-3904-a162-acf4e29d3e12","vendor":{"name":"parse-community"}}],"enisaIdVulnerability":[{"id":"648e625c-5ccb-3c43-97f4-57519b6482e4","vulnerability":{"id":"GHSA-7wqv-xjf3-x35v","description":"parse-server: Stored XSS via trailing-dot filename bypassing file upload extension blocklist","datePublished":"Jun 19, 2026, 7:35:11 PM","dateUpdated":"Jun 19, 2026, 7:35:11 PM","baseScore":0.0,"references":"https://github.com/parse-community/parse-server/security/advisories/GHSA-7wqv-xjf3-x35v\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53724\nhttps://github.com/parse-community/parse-server/pull/10489\nhttps://github.com/parse-community/parse-server/pull/10490\nhttps://github.com/parse-community/parse-server\n","enisa_id":"EUVD-2026-36539\n","aliases":"CVE-2026-53724\nGHSA-7wqv-xjf3-x35v\n","epss":0.0,"dataProcessed":"Oct 25, 2026, 1:57:08 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"d0a9eeeb-e92e-33b6-b4c6-61be4f4d9f51","vulnerability":{"id":"CVE-2026-53724","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.79 and 9.9.1-alpha.4, the default file upload extension blocklist can be bypassed by appending a trailing dot to a filename whose extension would otherwise be blocked (e.g. poc.svg.). The trailing dot causes the extension parser to extract an empty string, which short-circuits the blocklist check, and the attacker-controlled Content-Type is forwarded to the storage adapter unchanged. Storage adapters that persist and serve the provided Content-Type (such as S3 or GCS) then serve the file with an active type such as image/svg+xml, enabling stored XSS when a victim opens the file URL. The default GridFS adapter is not affected because it sets X-Content-Type-Options: nosniff on responses. This issue has been patched in versions 8.6.79 and 9.9.1-alpha.4.","datePublished":"Jun 12, 2026, 6:34:38 PM","dateUpdated":"Jun 12, 2026, 8:01:13 PM","status":"PUBLISHED","baseScore":2.1,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N","references":"https://github.com/parse-community/parse-server/security/advisories/GHSA-7wqv-xjf3-x35v\nhttps://github.com/parse-community/parse-server/pull/10489\nhttps://github.com/parse-community/parse-server/pull/10490\n","enisa_id":"EUVD-2026-36539\n","assigner":"GitHub_M","epss":0.28,"dataProcessed":"Oct 30, 2026, 7:16:47 AM","vulnerabilityProduct":[{"id":"bcfc1fd9-583c-3191-b765-d7304a399213","product":{"name":"parse-server","vendor":{"name":"parse-community"}},"product_version":"\u003c 8.6.79"},{"id":"ed683890-6873-39a4-b00c-d0ed3d5fbc89","product":{"name":"parse-server","vendor":{"name":"parse-community"}},"product_version":"9.0.0, \u003c 9.9.1-alpha.4"}],"vulnerabilityVendor":[{"id":"28ebaf35-959e-3364-a251-5c95ebe72ce6","vendor":{"name":"parse-community"}}]}}],"enisaIdAdvisory":[]}