How severe is CVE-2022-43660?

CVE-2022-43660 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-43660 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43660?

CVE-2022-43660 primarily affects Sixapart Movable Type. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-43660?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-43660 published?

CVE-2022-43660 was published on 2022-12-07 and last updated on 2026-06-17.

CVE-2022-43660

CVE-2022-43660 is a high-severity vulnerability in Sixapart Movable Type with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Sixapart Movable Type
Published: 2022-12-07
Last modified: 2026-06-17

Description

Improper neutralization of Server-Side Includes (SSW) within a web page in Movable Type series allows a remote authenticated attacker with Privilege of 'Manage of Content Types' may execute an arbitrary Perl script and/or an arbitrary OS command. Affected products/versions are as follows: Movable Type 7 r.5301 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.5301 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.53 and earlier, and Movable Type Premium Advanced 1.53 and earlier.

Frequently asked questions

What is CVE-2022-43660?: Improper neutralization of Server-Side Includes (SSW) within a web page in Movable Type series allows a remote authenticated attacker with Privilege of 'Manage of Content Types' may execute an arbitrary Perl script and/or an arbitrary OS command. Affected products/versions are as follows: Movable Type 7 r.5301 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.5301 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.53 and earlier, and Movable Type Premium Advanced 1.53 and earlier.
How severe is CVE-2022-43660?: CVE-2022-43660 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-43660 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43660?: CVE-2022-43660 primarily affects Sixapart Movable Type. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-43660?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-43660 published?: CVE-2022-43660 was published on 2022-12-07 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium:*:*:*
cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*
cpe:2.3:a:sixapart:movable_type:*:*:*:*:-:*:*:*
cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*

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