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TI-2023-20637 Aliases CVE-2023-39505GHSA-7p43-ch8g-7vxg

PDF-XChange Editor Net.HTTP.requests Exposed Dangerous Function Information Disclosure…

Priority LOW 25CWE-749Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

PDF-XChange Editor Net.HTTP.requests Exposed Dangerous Function Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the Net.HTTP.requests method. The issue results from the exposure of a dangerous function. An attacker can leverage this vulnerability to disclose information in the context of the current user. Was ZDI-CAN-20211.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0038 32nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PDF-XChangePDF-XChange Editor9.5.366.0—No fix listedCNA
  • PDF-XChange Editor VendorPDF-XChange Affected 9.5.366.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:pdf-xchange:pdf-tools:9.5.366.0:*:*:*:*:*:*:*9.5.366.0VulnerablePDF-XChange
cpe:2.3:a:pdf-xchange:pdf-xchange_editor:9.5.366.0:*:*:*:*:*:*:*9.5.366.0VulnerablePDF-XChange
  • cpe:2.3:a:pdf-xchange:pdf-tools:9.5.366.0:*:*:*:*:*:*:* Versions 9.5.366.0 Vulnerable ·PDF-XChange
  • cpe:2.3:a:pdf-xchange:pdf-xchange_editor:9.5.366.0:*:*:*:*:*:*:* Versions 9.5.366.0 Vulnerable ·PDF-XChange

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-39505
  2. 2026-10-03 Alias added: GHSA-7p43-ch8g-7vxg

References

Advisory 1

  • TI-2023-22476 Use after free in PDF-XChange Editor CVSS 3.1HIGH 7.8
  • TI-2023-22454 Use after free in PDF-XChange Editor CVSS 3.1HIGH 7.8
  • TI-2023-22453 Heap-based buffer overflow in PDF-XChange Editor CVSS 3.1HIGH 7.8
  • TI-2023-22451 Heap-based buffer overflow in PDF-XChange Editor CVSS 3.1HIGH 7.8
  • TI-2023-22445 Heap-based buffer overflow in PDF-XChange Editor CVSS 3.1HIGH 7.8
  • TI-2023-22444 Heap-based buffer overflow in PDF-XChange Editor CVSS 3.1HIGH 7.8
See all 171 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences