CVE-2020-8294

EPSS 0.9%CWE-79

A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in markdown format.

Affected products

n/a · Nextcloud Server

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References

https://hackerone.com/reports/1023787 https://nextcloud.com/security/advisory/?id=NC-SA-2021-002