CVE-2021-20809

EPSS 0.9%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.9%KEV nãoPoC —Patch —

Lifecycle

26 Aug 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Cross-site scripting vulnerability in Create screens of Entry, Page, and Content Type of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.44 and earlier, and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

Affected products

Six Apart Ltd. · Movable Type

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References

https://jvn.jp/en/jp/JVN97545738/index.html https://movabletype.org/news/2021/08/mt-780-681-released.html