HOMEVULNERABILITIESCVE-2026-33323
MEDIUM

CVE-2026-33323

CWE-204Published: March 24, 2026· Updated: Mar 25, 2026

5.3
CVSS v3.1
EPSS:0.05%probability of exploitation in 30 daysPercentile:16.2th

Official Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.51 and 9.6.0-alpha.40, the Pages route and legacy PublicAPI route for resending email verification links return distinguishable responses depending on whether the provided username exists and has an unverified email. This allows an unauthenticated attacker to enumerate valid usernames by observing different redirect targets. The existing emailVerifySuccessOnInvalidEmail configuration option, which is enabled by default and protects the API route against this, did not apply to these routes. This issue has been patched in versions 8.6.51 and 9.6.0-alpha.40.

NVD Source

Technical Analysis

CVE-2026-33323 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

parseplatform1 product
parse-server
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/parse-community/parse-server/commit/967aa57732202009b2389ce9ecb3130d53d657e5
PATCHhttps://github.com/parse-community/parse-server/commit/fbda4cb0c5cbc8fad08a216823b6b64d4ae289c3
ADVISORYhttps://github.com/parse-community/parse-server/security/advisories/GHSA-h29g-q5c2-9h4f

All References (5)

→
https://github.com/parse-community/parse-server/commit/967aa57732202009b2389ce9ecb3130d53d657e5Patch
→
https://github.com/parse-community/parse-server/commit/fbda4cb0c5cbc8fad08a216823b6b64d4ae289c3Patch
→
https://github.com/parse-community/parse-server/pull/10238Issue Tracking
→
https://github.com/parse-community/parse-server/pull/10243Issue Tracking
→
https://github.com/parse-community/parse-server/security/advisories/GHSA-h29g-q5c2-9h4fVendor Advisory

Quick Facts

CVE IDCVE-2026-33323
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-204
CISA KEVNo
EPSS (30d)0.05%
Affected1 vendor
PublishedMar 24, 2026

Related CVEs (CWE-204)

CVE-2018-25350
9.8
CVE-2026-33419
9.1
CVE-2019-25338
7.5
CVE-2026-4113
7.2
CVE-2026-54445
6.9
CVE-2026-53908
6.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33323 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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