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Fencer Vulns
high 7.5

CVE-2022-30286 in the critical feed json

pyscriptjs (aka PyScript Demonstrator) in PyScript through 2022-05-04 allows a remote user to read Python source code.

published 2022-05-09 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-52238

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.6%
EPSS 13.6% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

pyscriptjs (aka PyScript Demonstrator) in PyScript through 2022-05-04 allows a remote user to read Python source code.

Patch / fix

Timeline

  1. Published
  2. First public exploit (EDB-50918)

Exploit prediction

13.64% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-50918 PyScript - Read Remote Python Source Code remote, 2022-05-11
  • cyber-guy.gitbook.io https://cyber-guy.gitbook.io/cyber-guy/pocs/pyscript-file-read referenced PoC, tagged "exploit" by a source, unverified
  • cyber-guy.gitbook.io https://cyber-guy.gitbook.io/cyber-guy/blogs/the-art-of-vulnerability-chaining-pyscript referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/167069/PyScript-2022-05-04-Alpha-Source-Code-Disclosure.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

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.