CVE-2025-67996Network attack vector

Unauthenticated object injection via untrusted deserialization

Published Feb 20, 2026 · Updated Feb 20, 2026

PHP object injection in Bold Themes Nestin before 1.2.6 allows remote attackers to inject serialized objects through untrusted input. Patchstack has not published the affected function, request parameter, or code path, and the public record only establishes that Nestin deserializes attacker-controlled data. No known property-oriented programming chain exists in the theme itself; a suitable chain from another installed plugin or theme is required for file deletion, data disclosure, or code execution.

CVSS severity9.8
Critical
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in Bold Themes Nestin before 1.2.6 allows remote attackers to inject serialized objects through untrusted input. Patchstack has not published the affected function, request parameter, or code path, and the public record only establishes that Nestin deserializes attacker-controlled data. No known property-oriented programming chain exists in the theme itself; a suitable chain from another installed plugin or theme is required for file deletion, data disclosure, or code execution.

The record

CVE
CVE-2025-67996
Published
Feb 20, 2026
Updated
Feb 20, 2026
Vendor
Bold Themes
Product
Nestin
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 20, 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 <=< 1.2.6 changes=[{"at":"1.2.6","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bold Themes · Nestinversion=n/a <=< 1.2.6 changes=[{"at":"1.2.6","status":"unaffected"}]

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
T1190Exploit Public-Facing Application

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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