CVE-2018-18688 - CVE House
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Status published Medium CVE-2018-18688

The Portable Document Format (PDF) specification does not provide any...

Vulnerability Description

The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, an Incremental Saving vulnerability exists in multiple products. When an attacker uses the Incremental Saving feature to add pages or annotations, Body Updates are displayed to the user without any action by the signature-validation logic. This affects Foxit Reader before 9.4 and PhantomPDF before 8.3.9 and 9.x before 9.4. It also affects LibreOffice, Master PDF Editor, Nitro Pro, Nitro Reader, Nuance Power PDF Standard, PDF Editor 6 Pro, PDFelement6 Pro, PDF Studio Viewer 2018, PDF Studio Pro, Perfect PDF 10 Premium, and Perfect PDF Reader.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

code-industry

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Affected Software

master pdf editor, foxit reader, phantompdf, nitro pro, nitro reader, pdf editor 6, pdfelement6, libreoffice, power pdf standard, pdf studio, pdf studio viewer 2018, perfect pdf 10, perfect pdf reader
Vulnerable Versions:
5.1.12, 5.1.68, 5.1.24, 9.4, 9.1.0, 9.2.0, 9.0, 8.3.9, 11.0.3.173, 5.5.9.2, 6.4.2.3521, 6.6.2.3315, 6.7.6.3399, 6.8.0.3523, 6.8.4.3921, 6.7.1.3355, 6.0.6.2, 6.1.3.2, 6.1.0.3, 3.0.0.17, 3.0.0.30, 7.0, 12.0.7, 2018.0.1, 2018.2.0, 10.0.0.1, 13.0.3, 13.1.5

Timeline

Official Publish: January 7th, 2021
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.