CVE-2026-33088: Movable Type provided by Six Apart Ltd

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-33088 is a critical-severity flaw (CVSS 9.8) affecting movable type. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-89
Published	2026-04-08
Last modified	2026-07-24

Publisher (CNA): JPCERT/CC · Vendor: sixapart

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-08 09:16 UTCPublished CVE record published
2026-07-24 23:10 UTCUpdated Record last modified

sixapart movable type UPGRADE

Affected: >= 8.0.2 and < 8.0.10 · >= 8.8.0 and < 8.8.3 · >= 9.0.1 and < 9.0.7 · 9.1.0 · <= 2.14 · 9.0.5 · 9.0.6

Fixed in: 8.0.10, 8.8.3, 9.0.7

Safe to downgrade to: a release before 8.0.2

1. Check installed version

apt-cache policy movable-type || rpm -q movable-type || movable-type --version

2. UPGRADE to 8.0.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade movable-type

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade movable-type

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 8.0.2 (Debian / Ubuntu)

apt-cache madison movable-type sudo apt install movable-type=<VERSION_BEFORE_8.0.2> sudo apt-mark hold movable-type

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list movable-type sudo dnf downgrade movable-type-<VERSION_BEFORE_8.0.2> sudo dnf versionlock add movable-type

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33088?

movable type: upgrade to 8.0.10, 8.8.3, 9.0.7. Exact commands for each OS are on this page.

Is CVE-2026-33088 being exploited?

CVE-2026-33088 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33088 affect?

CVE-2026-33088 affects movable type. Severity is critical (CVSS 9.8). Movable Type provided by Six Apart Ltd. contains an SQL Injection vulnerability which may allow an attacker to execute an arbitrary SQL statement.

How urgent is CVE-2026-33088?

Priority 46/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-25776 CRITICAL 9.8 UPGRADE Movable Type provided by Six Apart Ltd

References

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