What is CVE-2022-36231?

CVE-2022-36231 is a critical-severity vulnerability in Newspaperclub Pdf Info, classified under OS Command Injection. CVSS score: 9.8/10. Published 2023-02-23.

How severe is CVE-2022-36231?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-36231 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Newspaperclub Pdf Info

CVE-2022-36231

pdf_info 0.5.3 is vulnerable to Command Execution because the Ruby code uses backticks instead of Open3.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-02-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.030 (87.0th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

Newspaperclub Pdf Info — versions 0.5.3

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

rubygems.org/gems/pdf_info (Product)
github.com/affix/CVE-2022-36231 (Exploit, Third Party Advisory)
github.com/newspaperclub/pdf_info/pull/15 (Patch)
github.com/newspaperclub/pdf_info/issues/16 (Patch)

Frequently asked questions

What is CVE-2022-36231?: CVE-2022-36231 is a critical-severity vulnerability in Newspaperclub Pdf Info, classified under OS Command Injection. CVSS score: 9.8/10. Published 2023-02-23.
How severe is CVE-2022-36231?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-36231 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.