CVE-2022-26619Public exploitNetwork attack vector

Stored script execution via unchecked attachment uploads

Published Apr 5, 2022 · Updated Aug 3, 2024

Unrestricted file upload in Halo Blog CMS 1.4.17 allows remote authenticated users to store malicious scripts through attachments. The uploadAttachment path passes the client file to AttachmentServiceImpl.upload, which stores it without validating its suffix, content, or format and returns its public path. Access to the administrative attachment interface is required, and visiting the returned path executes an uploaded script in the browser.

CVSS severity7.5
High
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Halo Blog CMS 1.4.17 allows remote authenticated users to store malicious scripts through attachments. The uploadAttachment path passes the client file to AttachmentServiceImpl.upload, which stores it without validating its suffix, content, or format and returns its public path. Access to the administrative attachment interface is required, and visiting the returned path executes an uploaded script in the browser.

The record

CVE
CVE-2022-26619
Published
Apr 5, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5OSVCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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