CVE-2022-38400Network attack vector

Form data disclosure via thanks module retention

Published Sep 8, 2022 · Updated Aug 3, 2024

Information disclosure in SYNCK GRAPHICA Mailform Pro CGI 4.3.1 and earlier allows remote attackers to read submitted form data. The enabled thanks module retains each submission for reuse by the thanks page and accepts a crafted URL that exposes the retained values. Disclosure requires a form user to open the attacker-supplied URL within the retention window, which defaults to 30 seconds in configs/thanks.cgi.

CVSS severity3.1
Low
EPSS probability1.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in SYNCK GRAPHICA Mailform Pro CGI 4.3.1 and earlier allows remote attackers to read submitted form data. The enabled thanks module retains each submission for reuse by the thanks page and accepts a crafted URL that exposes the retained values. Disclosure requires a form user to open the attacker-supplied URL within the retention window, which defaults to 30 seconds in configs/thanks.cgi.

The record

CVE
CVE-2022-38400
Published
Sep 8, 2022
Updated
Aug 3, 2024
Vendor
SYNCK GRAPHICA
Product
Mailform Pro CGI
Classifications
CWE-200
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 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=4.3.1 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SYNCK GRAPHICA · Mailform Pro CGIversion=4.3.1 and earlier

Published CVSS scores

2.6JPCERT/CC and IPAAV:N/AC:H/Au:N/C:P/I:N/A:N
3.1JPCERT/CC and IPACVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/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-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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