Phishing attack vulnerability by uploading malicious HTML file

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.3 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS

• CVE-2023-32689: 0.64% estimated exploitation activity in the next 30 days; percentile 50.66 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact Phishing attack vulnerability by uploading malicious files. A malicious user could upload a HTML file to Parse Server via its public API. That HTML file would then be accessible at the internet domain at which Parse Server is hosted. The URL of the the uploaded HTML could be shared for phishing attacks. The HTML page may seem legitimate because it is served under the internet domain where Parse Server is hosted, which may be the same as a company's official website domain. An additional security issue arises when the Parse JavaScript SDK is used. The SDK stores sessions in the internet browser's local storage, which usually restricts data access depending on the internet domain. A malicious HTML file could contain a script that retrieves the user's session token from local storage and then share it with the attacker. Patches The fix adds a new Parse Server option fileUpload.fileExtensions to restrict file upload on Parse Server by file extension. It is recommended to restrict…

Published by the source

31 May 2023, 23:39 UTC

Last modified by the source

6 Dec 2023, 01:03 UTC

Source last checked

26 Oct 2026, 12:27 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-9prm-jqwx-45x9

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-9prm-jqwx-45x9

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# Patch Next advisory brief: CVE-2023-32689

Advisory: Phishing attack vulnerability by uploading malicious HTML file
IDs: CVE-2023-32689, GHSA-9prm-jqwx-45x9
Record: https://patchnext.com/advisories/cve-2023-32689 (revision 2, source checked 26 Oct 2026, 12:27 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: parse-server 6.1.1, 5.4.4. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm parse-server: affected < 5.4.4; >= 6.0.0, < 6.1.1; fixed in 6.1.1, 5.4.4

## Suggested inspection (read-only)
- `npm ls parse-server --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on parse-server.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-9prm-jqwx-45x9 (OSV record GHSA-9prm-jqwx-45x9 lists affected ranges: npm parse-server >=0 =6.0.0 <6.1.1 (fixed))
- Verified: https://github.com/advisories/GHSA-9prm-jqwx-45x9 (GitHub-reviewed advisory GHSA-9prm-jqwx-45x9 lists affected ranges: npm parse-server >=0 =6.0.0 <6.1.1)

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