CVE-2021-20663

Description

Cross-site scripting vulnerability in in Role authority setting screen of Movable Type 7 r.4705 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4705 and earlier (Movable Type Advanced 7 Series), Movable Type 6.7.5 and earlier (Movable Type 6.7 Series), Movable Type Premium 1.39 and earlier, and Movable Type Premium Advanced 1.39 and earlier allows remote attackers to inject an arbitrary script via unspecified vectors.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.35%
Vendor Advisory movabletype.org
Affected: Six Apart Ltd. Movable Type
Published at:
Updated at:

References

Link Tags
https://jvn.jp/en/jp/JVN66542874/index.html third party advisory
https://movabletype.org/news/2021/02/mt-760-676-released.html release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-20663?
CVE-2021-20663 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20663?
To fix CVE-2021-20663, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20663 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20663 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20663?
CVE-2021-20663 affects Six Apart Ltd. Movable Type.
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