RCE in Sixapart Movable Type

CVE-2022-38078

Movable Type XMLRPC API provided by Six Apart Ltd. contains a command injection vulnerability. Sending a specially crafted message by POST method to Movable Type XMLRPC API may allow arbitrary Perl script execution, and an arbitrary OS command may be executed through it. Affected products and versions are as follows: Movable Type 7 r.5202 and earlier, Movable Type Advanced 7 r.5202 and earlier, Movable Type 6.8.6 and earlier, Movable Type Advanced 6.8.6 and earlier, Movable Type Premium 1.52 and earlier, and Movable Type Premium Advanced 1.52 and earlier. Note that all versions of Movable Type 4.0 or later including unsupported (End-of-Life, EOL) versions are also affected by this vulnerability.

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

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: 0.021 (81.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-38078: held from 0.021 to 0.021.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: +0.000

Affected products

  • Sixapart Movable Type
  • Six Apart Ltd. Movable Type Xmlrpc API — versions Movable Type 7 r.5202 and earlier, Movable Type Advanced 7 r.5202 and earlier, Movable Type 6.8.6 and earlier, Movable Type Advanced 6.8.6 and earlier, Movable Type Premium 1.52 and earlier, and Movable Type Premium Advanced 1.52 and earlier

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-38078?
CVE-2022-38078 is a critical-severity vulnerability in Sixapart Movable Type, classified under Code Injection. CVSS score: 9.8/10. Published 2022-08-24.
How severe is CVE-2022-38078?
Critical severity. CVSS v3 base score is 9.8 out of 10.