CVE-2025-26885Network attack vector

Authenticated object injection via Create Post API deserialization

Published Mar 3, 2025 · Updated Apr 29, 2026

Deserialization in Beaver Builder Assistant 1.5.1 and earlier allows remote authenticated users to inject PHP objects through the Create Post API. The Create Post API deserializes attacker-controlled request data, but public sources do not identify the parameter or PHP function. Editor-level access is required, and secondary code or SQL injection, path traversal, or service interruption additionally requires a suitable POP chain.

CVSS severity7.2
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Beaver Builder Assistant 1.5.1 and earlier allows remote authenticated users to inject PHP objects through the Create Post API. The Create Post API deserializes attacker-controlled request data, but public sources do not identify the parameter or PHP function. Editor-level access is required, and secondary code or SQL injection, path traversal, or service interruption additionally requires a suitable POP chain.

The record

CVE
CVE-2025-26885
Published
Mar 3, 2025
Updated
Apr 29, 2026
Vendor
Beaver Builder
Product
Assistant
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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=0 <=1.5.1 changes=[{"at":"1.5.1.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Beaver Builder · Assistantversion=0 <=1.5.1 changes=[{"at":"1.5.1.1","status":"unaffected"}]

Published CVSS scores

7.2PatchstackCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesauthenticated
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.

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Technologies

Your stack

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Your stack

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