Critical severity · published Sep 9, 2025
CVE-2025-44594
halo v2.20.17 and before is vulnerable to server-side request forgery (SSRF) in /apis/uc.api.storage.halo.run/v1alpha1/attachments/-/upload-from-url
9.1
CVSS
0.4%
EPSS
No
On KEV
Description
halo v2.20.17 and before is vulnerable to server-side request forgery (SSRF) in /apis/uc.api.storage.halo.run/v1alpha1/attachments/-/upload-from-url.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
Halo · Halo
through 2.20.17 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-44594
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-44594
Broken Link
https://meadow-horn-b94.notion.site/halo-ssrf-14c42bd5b11880c09936df07f58f5bed?pvs=74
More from Halo
9.8
CVE-2022-32995
Halo CMS v1.5.3 was discovered to contain a Server-Side Request Forgery (SSRF) via the template remote download function
9.8
CVE-2022-32994
Halo CMS v1.5.3 was discovered to contain an arbitrary file upload vulnerability via the component /api/admin/attachments/upload
9.8
CVE-2020-18980
Remote Code Executon vulnerability in Halo 0.4.3 via the remoteAddr and themeName parameters
9.8
CVE-2020-21526
An Arbitrary file writing vulnerability in halo v1.1.3
9.8
CVE-2020-21523
A Server-Side Freemarker template injection vulnerability in halo CMS v1.1.3 In the Edit Theme File function
