CVE-2024-52270
PDF Document Spoofing in DropBox Sign(HelloSign)
- Published
- Updated
- Reserved
- Assigned by
- VULSec
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VULSecCNA (assigner) | 4.0 | High8.2 | 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 |
| NVDNVD · Deferred | 4.0 | High8.2 | 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/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:Y/R:X/V:X/RE:X/U:Red |
- EPSS (exploitation in 30 days)
- 0.19% · top 91% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.2.
Weakness
Affected products
DropBox(HelloSign) · DropBox Sign
- affected ≤ 2024-12-04
What to do
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)
Exploitation: Known, potentially in use (e.g., spear phishing)
References (6)
- https://www.vulsec.org/advisories (opens in a new tab)vdb-entry
- https://www.loom.com/share/48f63594e14c49e19840ad9cb7d60453?sid=816c6afa-0b67-4b0b-98ff-d5c58d464038 (opens in a new tab)exploit
- https://new.space/s/ZuHoujvkjdzfY7Uihah7Yg#SKWLU_g2Cihfj4qsq9XNy6F4saxVAzD876PujiDOYfs (opens in a new tab)exploit
- https://drive.proton.me/urls/Z6DHXNRZQC#jkfO38rjOiOj (opens in a new tab)exploit
- https://sign.dropbox.com/ (opens in a new tab)product
- https://app.hellosign.com/ (opens in a new tab)product
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-52270)Record last updated .