How severe is CVE-2026-33088?

CVE-2026-33088 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-33088 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33088?

CVE-2026-33088 primarily affects Sixapart Movable Type. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-33088?

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

Does CVE-2026-33088 have an EU (EUVD) identifier?

Yes. CVE-2026-33088 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20133.

When was CVE-2026-33088 published?

CVE-2026-33088 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-33088

CVE-2026-33088 is a critical-severity vulnerability in Sixapart Movable Type with a CVSS 3.x base score of 9.8. 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 6.9
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20133
Weakness: CWE-89
Affected product: Sixapart Movable Type
Published: 2026-04-08
Last modified: 2026-06-17

Description

Movable Type provided by Six Apart Ltd. contains an SQL Injection vulnerability which may allow an attacker to execute an arbitrary SQL statement.

Frequently asked questions

What is CVE-2026-33088?: Movable Type provided by Six Apart Ltd. contains an SQL Injection vulnerability which may allow an attacker to execute an arbitrary SQL statement.
How severe is CVE-2026-33088?: CVE-2026-33088 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-33088 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33088?: CVE-2026-33088 primarily affects Sixapart Movable Type. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-33088?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-33088 have an EU (EUVD) identifier?: Yes. CVE-2026-33088 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20133.
When was CVE-2026-33088 published?: CVE-2026-33088 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:sixapart:movable_type:*:*:*:*:advanced:*:*:*
cpe:2.3:a:sixapart:movable_type:9.1.0:*:*:*:advanced:*:*:*
cpe:2.3:a:sixapart:movable_type:*:*:*:*:premium_advanced:*:*:*
cpe:2.3:a:sixapart:movable_type:9.0.5:*:*:*:premium_advanced:*:*:*
cpe:2.3:a:sixapart:movable_type:9.0.6:*:*:*:premium_advanced:*:*:*
cpe:2.3:a:sixapart:movable_type:9.1.0:*:*:*:premium_advanced:*:*:*

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