CVE-2022-22142Network attack vector

Reflected script execution via unescaped checkbox values

Published Feb 8, 2022 · Updated Aug 3, 2024

Reflected XSS in checkbox handling in Econosys System php_mailform before 1.40 allows remote attackers to execute scripts in users' browsers. The confirmation template loops over submitted checkbox values and renders each value into HTML without applying the Smarty escape modifier. Exploitation requires no authentication but requires a user to open a crafted request, allowing script execution in that user's browser context.

CVSS severity6.1
Medium
EPSS probability0.95%
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 checkbox handling in Econosys System php_mailform before 1.40 allows remote attackers to execute scripts in users' browsers. The confirmation template loops over submitted checkbox values and renders each value into HTML without applying the Smarty escape modifier. Exploitation requires no authentication but requires a user to open a crafted request, allowing script execution in that user's browser context.

The record

CVE
CVE-2022-22142
Published
Feb 8, 2022
Updated
Aug 3, 2024
Vendor
Econosys System
Product
php_mailform
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 8, 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?

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

  1. Affected versionversion=versions prior to Version 1.40

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Econosys System · php_mailformversion=versions prior to Version 1.40

Published CVSS scores

6.1JPCERT/CC JVNCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3JPCERT/CC JVNAV:N/AC:M/Au:N/C:N/I:P/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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