CVE-2024-52270

PDF Document Spoofing in DropBox Sign(HelloSign)

Published Dec 5, 2024 CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
Description
User Interface (UI) Misrepresentation of Critical Information vulnerability in DropBox Sign(HelloSign) allows Content Spoofing.
Displayed version does not show the layer flattened version, once download, If printed (e.g. via Google Chrome -> Examine the print preview): Will render the vulnerability only, not all layers are flattened.
This issue affects DropBox Sign(HelloSign): through 2024-12-04.

Remediation

Vendor Workaround

* If other party initiated e-signing - Download the PDF file for a security professionals/educated persons inspection * If possible - Download the PDF file and perform full flattening (of the entire document, not just form fields)

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-46111 User Interface (UI) Misrepresentation of Critical Information vulnerability in DropBox Sign(HelloSign) allows Content Spoofing. Displayed version does not show the layer flattened version, once download, If printed (e.g. via Google Chrome -> Examine the print preview): Will render the vulnerability only, not all layers are flattened. This issue affects DropBox Sign(HelloSign): through 2024-12-04.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/U:Red'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/AU:Y/U:Red'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description User Interface (UI) Misrepresentation of Critical Information vulnerability in DropBox Sign(HelloSign) allows Content Spoofing. Displayed version does not show the layer flattened version, once download, If printed (e.g. via Google Chrome -> Examine the print preview): Will render the vulnerability only, not all layers are flattened. This issue affects DropBox Sign(HelloSign): through 2024-12-04.
Title PDF Document Spoofing in DropBox Sign(HelloSign)
Weaknesses CWE-451
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/U:Red'}

Subscriptions

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Weaknesses

Sources

Status
PUBLISHED
Assigner
VULSec
Published
Updated
Sep 21, 2026, 5:45 PM
Reserved
Nov 6, 2024, 8:35 AM
Status
Deferred
Published
Dec 5, 2024, 11:15 AM
Modified
Jun 17, 2026, 8:06 AM