CVE-2022-4643Public exploitNetwork attack vector

Remote command execution via unescaped PDF path

Published Dec 21, 2022 · Updated Aug 3, 2024

OS command injection in Sajari docconv 1.2.0 and earlier allows remote attackers to execute arbitrary commands through a crafted PDF path. PDFHasImage interpolates the unescaped path into a pdffonts pipeline executed by bash -c, allowing shell command substitutions to run. An OCR-enabled build must process an attacker-controlled path; injected commands run with the privileges of the hosting process.

CVSS severity9.8
Critical
EPSS probability1.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Sajari docconv 1.2.0 and earlier allows remote attackers to execute arbitrary commands through a crafted PDF path. PDFHasImage interpolates the unescaped path into a pdffonts pipeline executed by bash -c, allowing shell command substitutions to run. An OCR-enabled build must process an attacker-controlled path; injected commands run with the privileges of the hosting process.

The record

CVE
CVE-2022-4643
Published
Dec 21, 2022
Updated
Aug 3, 2024
Vendor
Sajari
Product
docconv
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0
  2. Affected versionversion=1.1
  3. Affected versionversion=1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Sajari · docconvversion=1.0; version=1.1; version=1.2

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

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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