CVE-2020-21524

Critical

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

SeverityCritical
CVSS9.1
Exploit probability—
ProductHalo
PublishedSep 30, 2020
First seenSep 30, 2020

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
halo halo1.1.3—

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CVE-2020-21524 · Halo · Dark Radar