NPM: parse-server: Stored XSS via non-standard file extension bypassing file upload extension blocklist

NPM: parse-server: Stored XSS via non-standard file extension bypassing file upload extension blocklist vulnerability discovered by ? in WordPress Npm parse-server versions = 8.6.80...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.29) potentially affected by CVE-2026-55778 via parse-server (>=9.6.0-alpha.37, <=9.8.0)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.29 Source cves: CVE-2026-55778 Source advisory: SNYK:JS-PARSESERVER-17420047...

GHSA-V8X7-R927-CC93 parse-server: Stored XSS via non-standard file extension bypassing file upload extension blocklist

Impact Parse Server's default fileUpload.fileExtensions blocklist is intended to prevent uploading files that browsers render as active content such as HTML and SVG, which can be used to perform stored cross-site scripting XSS attacks against other users. The blocklist could be bypassed by...

Cross-site Scripting (XSS)

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the file upload extension check in FilesRouter in src/FilesRouter and FilesController. An...

@kontaa/subgraph (>=1.0.1, <=1.2.3), @kontaa/utils (>=1.2.1, <=1.2.3) +4 more potentially affected by CVE-2026-55778 via parse-server (>=6.5.11, <=7.5.4)

parse-server NPM version =6.5.11, =1.0.1, =1.2.1, =2.4.46, =1.0.1, =1.0.0, =1.0.0, =1.0.1 Source cves: CVE-2026-55778 Source advisory: SNYK:JS-PARSESERVER-17420047...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.29) potentially affected by CVE-2026-55778 via parse-server (>=9.6.0-alpha.37, <=9.8.0)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.29 Source cves: CVE-2026-55778 Source advisory: OSV:GHSA-V8X7-R927-CC93...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.29) potentially affected by CVE-2026-53726 via parse-server (>=9.6.0-alpha.37, <=9.8.0)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.29 Source cves: CVE-2026-53726 Source advisory: OSV:GHSA-WMWX-JR2P-4J4R...

EUVD-2026-36542

parse-server: Relation $relatedTo query bypasses protectedFields and owning-object ACL...

NPM: parse-server: Relation `$relatedTo` query bypasses `protectedFields` and owning-object ACL

NPM: parse-server: Relation $relatedTo query bypasses protectedFields and owning-object ACL vulnerability discovered by ? in WordPress Npm parse-server versions 8.6.80...

GHSA-WMWX-JR2P-4J4R parse-server: Relation `$relatedTo` query bypasses `protectedFields` and owning-object ACL

Impact A relation query using the $relatedTo operator could read the membership of a Relation field even when that field was hidden from the requesting client by protectedFields, and even when the object owning the relation was not readable by the client under its ACL or class-level permissions...

@openinc/parse-server-opendash (>=4.0.12, <=4.0.29) potentially affected by CVE-2026-53725 via parse-server (9.8.0)

parse-server NPM version 9.8.0 is affected by a known vulnerability. The following packages have a transitive dependency on parse-server and may be impacted: - @openinc/parse-server-opendash =4.0.12, =4.0.29 Source cves: CVE-2026-53725 Source advisory: OSV:GHSA-75V4-M273-5J49...

EUVD-2026-36540

parse-server: Endpoints /login and /verifyPassword disclose MFA secrets and protected fields when User get is denied...

NPM: parse-server: Endpoints `/login` and `/verifyPassword` disclose MFA secrets and protected fields when `_User` get is denied

NPM: parse-server: Endpoints /login and /verifyPassword disclose MFA secrets and protected fields when User get is denied vulnerability discovered by ? in WordPress Npm parse-server versions = 9.8.0, 9.9.1-alpha.5...

GHSA-75V4-M273-5J49 parse-server: Endpoints `/login` and `/verifyPassword` disclose MFA secrets and protected fields when `_User` get is denied

Impact Apps that enable MFA and deny get on the User class via Class-Level Permissions could expose sensitive user data through the /login and /verifyPassword endpoints. These endpoints re-fetch the user through the access-controlled query pipeline CLP, protectedFields, auth-adapter sanitizers...

parse-server: Endpoints `/login` and `/verifyPassword` disclose MFA secrets and protected fields when `_User` get is denied

Impact Apps that enable MFA and deny get on the User class via Class-Level Permissions could expose sensitive user data through the /login and /verifyPassword endpoints. These endpoints re-fetch the user through the access-controlled query pipeline CLP, protectedFields, auth-adapter sanitizers...

EUVD-2026-36539

parse-server: Stored XSS via trailing-dot filename bypassing file upload extension blocklist...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.29) potentially affected by CVE-2026-53724 via parse-server (>=9.6.0-alpha.37, <=9.8.0)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.29 Source cves: CVE-2026-53724 Source advisory: OSV:GHSA-7WQV-XJF3-X35V...

NPM: parse-server: Stored XSS via trailing-dot filename bypassing file upload extension blocklist

NPM: parse-server: Stored XSS via trailing-dot filename bypassing file upload extension blocklist vulnerability discovered by ? in WordPress Npm parse-server versions = 8.6.78...

GHSA-7WQV-XJF3-X35V parse-server: Stored XSS via trailing-dot filename bypassing file upload extension blocklist

Impact 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...

NPM: parse-server: Server option routeAllowList is bypassable through batch sub-requests

NPM: parse-server: Server option routeAllowList is bypassable through batch sub-requests vulnerability discovered by ? in WordPress Npm parse-server versions = 9.8.0, 9.9.1-alpha.3...