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.

Published: 2022-08-24 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-38078 is rated Moderate Risk (62.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.87%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-38078

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 5.22% 1.87% -3.36%
2 2025-08-30 4.02% 5.22% +1.20%
3 2025-08-29 — 4.02% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-38078

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2022-38078

OS Trackers for CVE-2022-38078

vendor priority summary link
ubuntu medium CVE-2022-38078 medium priority: Ubuntu including 1 source packages (movabletype-opensource), 6 status rows across 6 suites (bionic, focal, jammy, trusty, upstream, xenial): DNE 3, ignored 2, needs-triage 1. https://ubuntu.com/security/CVE-2022-38078

Affected software / configurations for CVE-2022-38078

Vendor Product Version Raw CPE
sixapart movable_type < 1.53 cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:*
sixapart movable_type < 1.53 cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*
sixapart movable_type >= 6.0.0, < 6.8.7 cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:-:*:*
sixapart movable_type >= 6.0.0, < 6.8.7 cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:aws:*:*
sixapart movable_type >= 6.0.0, < 6.8.7 cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:-:*:*
sixapart movable_type >= 6.0.0, < 6.8.7 cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:aws:*:*
sixapart movable_type >= 7.0.0, < 7.9.5 cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:-:*:*
sixapart movable_type >= 7.0.0, < 7.9.5 cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:aws:*:*
sixapart movable_type >= 7.0.0, < 7.9.5 cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:-:*:*
sixapart movable_type >= 7.0.0, < 7.9.5 cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:aws:*:*

References for CVE-2022-38078

cvelogic Threat Intelligence