CVE-2020-21524

CRITICAL

Halo - XXE

Title source: rule
STIX 2.1

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

References (1)

Core 1
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/halo-dev/halo/issues/423

Scores

CVSS v3 9.1
EPSS 0.0029
EPSS Percentile 52.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Details

CWE
CWE-611
Status published
Products (1)
halo/halo 1.1.3
Published Sep 30, 2020
Tracked Since Feb 18, 2026