CVE-2022-0378Public exploitNetwork attack vector

Browser script execution via unsanitized module values

Published Jan 26, 2022 · Updated Aug 2, 2024

Reflected XSS in Microweber before 1.2.11 allows remote attackers to execute script in a visitor's browser through a crafted URL. ApiController::module merges GET and POST data but sanitizes only parameter names, leaving parameter values to be rendered without XSS cleaning. A visitor must open the attacker-crafted URL; the resulting script runs in that visitor's Microweber origin and can read or alter browser-accessible data.

CVSS severity7.1
High
EPSS probability3.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Microweber before 1.2.11 allows remote attackers to execute script in a visitor's browser through a crafted URL. ApiController::module merges GET and POST data but sanitizes only parameter names, leaving parameter values to be rendered without XSS cleaning. A visitor must open the attacker-crafted URL; the resulting script runs in that visitor's Microweber origin and can read or alter browser-accessible data.

The record

CVE
CVE-2022-0378
Published
Jan 26, 2022
Updated
Aug 2, 2024
Vendor
Microweber
Product
Microweber
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 26, 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 <1.2.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microweber · Microweberversion=unspecified <1.2.11

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
7.1huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

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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