CVE-2023-32610Network attack vector

Service interruption via postal-code regular expression exhaustion

Published Jun 29, 2023 · Updated Nov 26, 2024

Regular expression denial of service in SYNCK GRAPHICA Mailform Pro CGI 4.3.1.2 and earlier allows remote attackers to interrupt service. The optional prefcode/prefcode.js postal-code add-on applies an inefficient regular expression to attacker-controlled postal-code input, consuming excessive processing resources. Exploitation requires the add-on to be enabled; the documented consequence is service interruption without confidentiality or integrity impact.

CVSS severity3.7
Low
EPSS probability1.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Regular expression denial of service in SYNCK GRAPHICA Mailform Pro CGI 4.3.1.2 and earlier allows remote attackers to interrupt service. The optional prefcode/prefcode.js postal-code add-on applies an inefficient regular expression to attacker-controlled postal-code input, consuming excessive processing resources. Exploitation requires the add-on to be enabled; the documented consequence is service interruption without confidentiality or integrity impact.

The record

CVE
CVE-2023-32610
Published
Jun 29, 2023
Updated
Nov 26, 2024
Vendor
SYNCK GRAPHICA
Product
Mailform Pro CGI
Classifications
CWE-1333, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.3.1.2 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SYNCK GRAPHICA · Mailform Pro CGIversion=4.3.1.2 and earlier

Published CVSS scores

3.7JPCERT/CCCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
4.3JPCERT/CCAV:N/AC:M/Au:N/C:N/I:N/A:P
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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-1333Inefficient Regular Expression Complexity
T1499.003Application Exhaustion Flood

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo