CVE-2022-45122

Name: CVE-2022-45122
Creator: NVD / NIST
Published: 2022-12-07T04:15:11.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2022-45122 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross-site scripting vulnerability in Movable Type 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 6.8.7 and earlier (Movable Type 6 Series), Movable Type Advanced 6.8.7 and earlier (Movable Type Advanced 6 Series), Movable Type Premium 1.53 and earlier, and Movable Type Premium Advanced 1.53 and earlier allows a remote unauthenticated attacker to inject an arbitrary script.. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

Cross-site scripting vulnerability in Movable Type 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 6.8.7 and earlier (Movable Type 6 Series), Movable Type Advanced 6.8.7 and earlier (Movable Type Advanced 6 Series), Movable Type Premium 1.53 and earlier, and Movable Type Premium Advanced 1.53 and earlier allows a remote unauthenticated attacker to inject an arbitrary script.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.51%

39.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Sixapart	Movable Type	<= 1.53
Sixapart	Movable Type	>= 6.0, < 6.8.7
Sixapart	Movable Type	>= 7.0, < 7.9.6

References

https://jvn.jp/en/jp/JVN37014768/index.htmlThird Party Advisory
https://movabletype.org/news/2022/11/mt-796-688-released.htmlRelease Notes, Vendor Advisory
https://jvn.jp/en/jp/JVN37014768/index.htmlThird Party Advisory
https://movabletype.org/news/2022/11/mt-796-688-released.htmlRelease Notes, Vendor Advisory

Timeline

Published: Dec 7, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-45122?

How severe is CVE-2022-45122?

CVE-2022-45122 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2022-45122?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-45122?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST