CVE-2022-45113: Improper validation of syntactic correctness of input vulnerability exist in Movable Type series

Routine

MEDIUM 6.5UPGRADE

CVE-2022-45113 is a medium-severity flaw (CVSS 6.5) affecting movable type. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper validation of syntactic correctness of input vulnerability exist in Movable Type series. Having a user to access a specially crafted URL may allow a remote unauthenticated attacker to set a specially crafted URL to the Reset Password page and conduct a phishing attack. 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 S

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-20
Published	2022-12-07
Last modified	2026-06-17

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

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-12-07 04:15 UTCPublished CVE record published
2026-06-17 05:09 UTCUpdated Record last modified

sixapart movable type UPGRADE

Affected: <= 1.53 · >= 6.0 and < 6.8.7 · >= 7.0 and < 7.9.6

Fixed in: 6.8.7, 7.9.6

Safe to downgrade to: a release before 6.0

1. Check installed version

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

2. UPGRADE to 6.8.7 (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 6.0 (Debian / Ubuntu)

apt-cache madison movable-type sudo apt install movable-type=<VERSION_BEFORE_6.0> 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_6.0> 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-2022-45113?

movable type: upgrade to 6.8.7, 7.9.6. Exact commands for each OS are on this page.

Is CVE-2022-45113 being exploited?

CVE-2022-45113 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-2022-45113 affect?

CVE-2022-45113 affects movable type. Severity is medium (CVSS 6.5). Improper validation of syntactic correctness of input vulnerability exist in Movable Type series. Having a user to access a specially crafted URL may allow a remote unauthenticated attacker to set a specially crafted URL to the Reset Passwo

How urgent is CVE-2022-45113?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2026-25776 CRITICAL 9.8 UPGRADE Movable Type provided by Six Apart Ltd
CVE-2026-33088 CRITICAL 9.8 UPGRADE Movable Type provided by Six Apart Ltd
CVE-2023-45746 MEDIUM 5.4 UPGRADE Cross-site scripting vulnerability in Movable Type series allows a remote authenticated attacker to inject an
CVE-2022-45122 MEDIUM 6.1 UPGRADE Cross-site scripting vulnerability in Movable Type Movable Type 7 r.5301 and earlier (Movable Type 7 Series),
CVE-2022-43660 HIGH 7.2 UPGRADE Improper neutralization of Server-Side Includes (SSW) within a web page in Movable Type series allows a remote

References

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