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Fencer Vulns
high 8.8

CVE-2020-13144 in the critical feed json

Studio in Open edX Ironwood 2.5, when CodeJail is not used, allows a user to go to the "Create New course>New section>New subsection>New un…

published 2020-05-18 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-5420

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.0%
EPSS 11.0% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

Studio in Open edX Ironwood 2.5, when CodeJail is not used, allows a user to go to the "Create New course>New section>New subsection>New unit>Add new component>Problem button>Advanced tab>Custom Python evaluated code" screen, edit the problem, and execute Python code. This leads to arbitrary code execution.

Timeline

  1. Published
  2. First public exploit (EDB-48500)

Exploit prediction

10.96% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-48500 OpenEDX platform Ironwood 2.5 - Remote Code Execution webapps, 2020-05-21
  • stark0de.com https://stark0de.com/2020/05/17/openedx-vulnerabilities.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/157785/OpenEDX-Ironwood-2.5-Remote-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code
  • CWE-862 Missing Authorization

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.