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Fencer Vulns
critical 9.8

CVE-2023-0297 in the critical feed json

Code Injection in pyload/pyload

published 2023-01-14 3 y ago modified 2026-07-01 4 mo ago also GHSA-pf38-5p22-x6h6 , PYSEC-2026-498 , EUVD-2023-0517

cvss
9.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
95.9%
EPSS 95.9% chance of exploitation in 30 days, percentile 99.8%
public exploits
2
Metasploit, Exploit-DB, plus a Nuclei check

Summary

Code Injection in GitHub repository pyload/pyload prior to 0.5.0b3.dev31.

Patch / fix

  • pypi pyload-ng 0.5.0b3.dev31
  • pyload pyload/pyload 0.5.0b3.dev31

Timeline

  1. First public exploit (Metasploit exploit/linux/http/pyload_js2py_exec)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
19 mo ago

Exploit prediction

95.91% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
CNA 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi pyload-ng
<0.5.0b3.dev31
0.5.0b3.dev31

Affected products

  • pyload pyload/pyload

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.