Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In versions prior to 8.6.1 and 9.1.0-alpha.3, a Reflected Cross-Site Scripting (XSS) vulnerability exists in Parse Server's password reset and email verification HTML pages. The patch, available in versions 8.6.1 and 9.1.0-alpha.3, escapes user controlled values that are inserted into the HTML pages. No known workarounds are available.
Affected products
parseplatform: parse-server
References3
- github.com/parse-community/parse-server/security/advisories/GHS… Vendor Advisory
- github.com/parse-community/parse-server/pull/9985 Issue TrackingPatch
- github.com/parse-community/parse-server/pull/9986 Issue TrackingPatch
Metrics
- CVSS 3.1
-
6.1
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 4.0
-
5.3
MEDIUM
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 12 · as of 11 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.