Halo v2.20.17 and before is vulnerable to Cross Site Scripting (XSS) in /halo_host/archives/{name}.

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.

halo v1.6.0 is vulnerable to Cross Site Scripting (XSS).

An arbitrary file upload vulnerability in Halo up to v1.6.1 allows attackers to execute arbitrary code via a crafted .md file.

Halo CMS v1.5.3 was discovered to contain a Server-Side Request Forgery (SSRF) via the template remote download function.

Halo CMS v1.5.3 was discovered to contain an arbitrary file upload vulnerability via the component /api/admin/attachments/upload.

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

Halo CMS - Stored Cross-Site Scripting (XSS) in Article's Tag

In Halo, versions v1.0.0 to v1.4.17 (latest) are vulnerable to Stored Cross-Site Scripting (XSS) in the article tag. An authenticated admin attacker can inject arbitrary javascript code that will execute on a victim’s server.

In halo 1.4.14, the function point of uploading the avatar, any file can be uploaded, such as uploading an HTML file, which will cause a stored XSS vulnerability.

SSRF vulnerability in Halo <=1.3.2 exists in the SMTP configuration, which can detect the server intranet.

There is an Arbitrary file deletion vulnerability in halo v1.1.3. A backup function in the background allows a user, when deleting their backup files, to delete any files on the system through directory traversal.

An Arbitrary file writing vulnerability in halo v1.1.3. In an interface to write files in the background, a directory traversal check is performed on the input path parameter, but the startsWith function can be used to bypass it.

Halo V1.1.3 is affected by: Arbitrary File reading. In an interface that reads files in halo v1.1.3, a directory traversal check is performed on the input path parameter, but the startsWith function can be used to bypass it.

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

A Server-Side Freemarker template injection vulnerability in halo CMS v1.1.3 In the Edit Theme File function. The ftl file can be edited. This is the Freemarker template file. This file can cause arbitrary code execution when it is rendered in the background. exp: <#assign test="freemarker.template.utility.Execute"?new()> ${test("touch /tmp/freemarkerPwned")}

An issue was discovered in halo V1.1.3. A Zip Slip Directory Traversal Vulnerability in the backend,the attacker can overwrite some files, such as ftl files, .bashrc files in the user directory, and finally get the permissions of the operating system.

Cross Site Scripting (XSS) vulnerability in Halo 1.1.3 via post publish components in the manage panel, which lets a remote malicious user execute arbitrary code.

File Deletion vulnerability in Halo 0.4.3 via delBackup.

Incorrect Access Control vulnearbility in Halo 0.4.3, which allows a malicious user to bypass encrption to view encrpted articles via cookies.

Halo blog 1.2.0 allows users to submit comments on blog posts via /api/content/posts/comments. The javascript code supplied by the attacker will then execute in the victim user's browser.