CVE-2022-36226Public exploitNetwork attack vector

Authenticated code execution via auto-extracted template archive

Published Aug 25, 2022 · Updated Aug 3, 2024

Missing authorization in SiteServerCMS 5.x allows remote authenticated users to write a web shell through a crafted template download. The ajaxOtherService.aspx handler decrypts attacker-controlled downloadUrl input with the version 5 default SecretKey, then SiteTemplateDownload fetches and automatically extracts the archive. High-privilege access to the network endpoint is required; a crafted archive can place executable ASPX content beneath SiteFiles and enable server-side code execution.

CVSS severity7.2
High
EPSS probability1.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in SiteServerCMS 5.x allows remote authenticated users to write a web shell through a crafted template download. The ajaxOtherService.aspx handler decrypts attacker-controlled downloadUrl input with the version 5 default SecretKey, then SiteTemplateDownload fetches and automatically extracts the archive. High-privilege access to the network endpoint is required; a crafted archive can place executable ASPX content beneath SiteFiles and enable server-side code execution.

The record

CVE
CVE-2022-36226
Published
Aug 25, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1190, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 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

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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-862Missing Authorization
T1190Exploit Public-Facing Application
T1505.003Web Shell

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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