CVE-2022-0855Network attack vector

Cross-origin content loading via unchecked frame URL

Published Mar 4, 2022 · Updated Aug 2, 2024

Improper path resolution in Microweber WHMCS Plugin before 0.0.4 allows remote attackers to load cross-origin content via a crafted URL. The embed.js order-flow code decodes a Base64 frameurl value from the location hash without comparing the decoded URL's hostname with the current hostname. NVD's assessment requires victim interaction with the crafted URL, and public sources do not define a more specific confidentiality or integrity consequence.

CVSS severity7.4
High
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper path resolution in Microweber WHMCS Plugin before 0.0.4 allows remote attackers to load cross-origin content via a crafted URL. The embed.js order-flow code decodes a Base64 frameurl value from the location hash without comparing the decoded URL's hostname with the current hostname. NVD's assessment requires victim interaction with the crafted URL, and public sources do not define a more specific confidentiality or integrity consequence.

The record

CVE
CVE-2022-0855
Published
Mar 4, 2022
Updated
Aug 2, 2024
Vendor
Microweber
Product
Microweber WHMCS Plugin
Classifications
CWE-706, CWE-41
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <0.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microweber · Microweber WHMCS Pluginversion=unspecified <0.0.4

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
7.4HuntrCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
5.8NVDAV:N/AC:M/Au:N/C:P/I:P/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-706Use of Incorrectly-Resolved Name or Reference
CWE-41Improper Resolution of Path Equivalence

Public exploit references

No public exploit references are available in this record.

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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