What is CVE-2022-26619?

CVE-2022-26619 is a high-severity vulnerability in Halo, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.5/10. Published 2022-04-05.

How severe is CVE-2022-26619?

High severity. CVSS v3 base score is 7.5 out of 10.

Arbitrary file upload in Halo

CVE-2022-26619

Halo Blog CMS v1.4.17 was discovered to allow attackers to upload arbitrary files via the Attachment Upload function.

Vulnerability class: Unrestricted File Upload

Published 2022-04-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Halo — versions 1.4.17

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

github.com/halo-dev/halo/issues/1702 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-26619?: CVE-2022-26619 is a high-severity vulnerability in Halo, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.5/10. Published 2022-04-05.
How severe is CVE-2022-26619?: High severity. CVSS v3 base score is 7.5 out of 10.