CVE-2025-31429Network attack vector

Unauthenticated object injection via unsafe deserialization

Published Jun 9, 2025 · Updated Apr 28, 2026

Deserialization of untrusted data in ThemeTon PressGrid 1.3.1 and earlier allows remote attackers to inject objects over the network. The public CNA record and its sole Patchstack reference do not identify the affected function, input field, endpoint, or deserialization call. No privileges or user interaction are required, but further effects depend on available object behavior, and no specific data-access, modification, or service-interruption outcome is publicly documented.

CVSS severity9.8
Critical
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in ThemeTon PressGrid 1.3.1 and earlier allows remote attackers to inject objects over the network. The public CNA record and its sole Patchstack reference do not identify the affected function, input field, endpoint, or deserialization call. No privileges or user interaction are required, but further effects depend on available object behavior, and no specific data-access, modification, or service-interruption outcome is publicly documented.

The record

CVE
CVE-2025-31429
Published
Jun 9, 2025
Updated
Apr 28, 2026
Vendor
ThemeTon
Product
PressGrid - Frontend Publish Reaction & Multimedia Theme
Classifications
CWE-502, CAPEC-586
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=n/a <=1.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ThemeTon · PressGrid - Frontend Publish Reaction & Multimedia Themeversion=n/a <=1.3.1

Published CVSS scores

9.8PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-502Deserialization of Untrusted Data
CAPEC-586Object Injection

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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