CVE-2020-21524

Public Exploit

Description

There is a XML external entity (XXE) vulnerability in halo v1.1.3, The function of importing other blogs in the background(/api/admin/migrations/wordpress) needs to parse the xml file, but it is not used for security defense, This vulnerability can detect the intranet, read files, enable ddos attacks, etc. exp:https://github.com/halo-dev/halo/issues/423

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.29%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/halo-dev/halo/issues/423 third party advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2020-21524?
CVE-2020-21524 has been scored as a critical severity vulnerability.
How to fix CVE-2020-21524?
To fix CVE-2020-21524, 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-2020-21524 being actively exploited in the wild?
It is possible that CVE-2020-21524 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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