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CVE-2022-36231

31
FAUCET Score

CVE-2022-36231 is a critical command execution vulnerability affecting the newspaperclub pdf_info Ruby gem, version 0.5.3. This flaw arises from the use of backticks instead of Open3 for executing external commands, allowing an attacker to inject arbitrary commands. With a CVSS score of 9.8, it presents a severe risk, enabling unauthenticated remote attackers to achieve complete compromise of confidentiality, integrity, and availability. Despite its high severity and EPSS score, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.5.3CPE matchmatch criteria
cpe:2.3:a:newspaperclub:pdf_info:0.5.3:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.01%
Probability of exploitation in next 30 days
EPSS Percentile
86.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0301 is in the 77th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

rubygemsGHSA-9fh3-j99m-f4v7critical

Code injection in pdf_info

Feb 24, 2023

References

github.com / affix/CVE-2022-36231
ExploitThird Party Advisory
github.com / newspaperclub/pdf_info/issues/16
Patch
github.com / newspaperclub/pdf_info/pull/15
Patch
rubygems.org / gems/pdf_info
Product