Arbitrary file upload in Spip

CVE-2021-44123

SPIP 4.0.0 is affected by a remote command execution vulnerability. To exploit the vulnerability, an attacker must craft a malicious picture with a double extension, upload it and then click on it to execute it.

Vulnerability class: Unrestricted File Upload

EPSS: 0.024 (82.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Spip — versions 4.0.0
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-44123?
CVE-2021-44123 is a high-severity vulnerability in Spip, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-01-26.
How severe is CVE-2021-44123?
High severity. CVSS v3 base score is 8.8 out of 10.