CVE-2024-52271

Signed PDF content spoofing via unflattened layers

Published Dec 5, 2024 · Updated Dec 5, 2024

UI misrepresentation in Documenso and Documenso SaaS as of 2024-12-05 allows attackers to spoof signed PDF content via crafted layered PDFs. The editor and signing UI preserve the PDF structure without identifying or flattening multiple layers before signing and download, so normal and print views can show different content. Exploitation requires a layered PDF to enter the signing workflow and a recipient to trust one rendering; the bounded consequence is document-content integrity loss.

CVSS severity8.2
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

UI misrepresentation in Documenso and Documenso SaaS as of 2024-12-05 allows attackers to spoof signed PDF content via crafted layered PDFs. The editor and signing UI preserve the PDF structure without identifying or flattening multiple layers before signing and download, so normal and print views can show different content. Exploitation requires a layered PDF to enter the signing workflow and a recipient to trust one rendering; the bounded consequence is document-content integrity loss.

The record

CVE
CVE-2024-52271
Published
Dec 5, 2024
Updated
Dec 5, 2024
Vendor
Documenso
Product
Documenso
Classifications
CWE-451, CAPEC-148, T1036
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.8.0
  2. Affected versionversion=0 <=2024-12-05
  3. Affected versionversion=>1.8.0
  4. Affected versionversion=1.8.0*
  5. Affected versionversion=2024-12-05

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Documenso · Documensoversion=0 <=1.8.0; version=0 <=2024-12-05; version=>1.8.0; version=1.8.0*; version=2024-12-05
Documenso · Documenso SaaSversion=0 <=2024-12-05; version=2024-12-05

Published CVSS scores

8.2VULSecCVSS: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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-451User Interface (UI) Misrepresentation of Critical Information
CAPEC-148Content Spoofing
T1036Masquerading

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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