CVE-2026-1558Network attack vector

Unauthenticated post metadata overwrite via unchecked recipeId

Published Feb 27, 2026 · Updated Feb 27, 2026

IDOR in WP Recipe Maker 10.3.2 and earlier allows remote attackers to overwrite post metadata through its Instacart REST API. The endpoint registers permission_callback as __return_true and processes the user-controlled recipeId without authorization or ownership checks. Authentication and user interaction are unnecessary; an attacker can replace wprm_instacart_combinations for any supplied post ID, altering stored Instacart associations.

CVSS severity5.3
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

IDOR in WP Recipe Maker 10.3.2 and earlier allows remote attackers to overwrite post metadata through its Instacart REST API. The endpoint registers permission_callback as __return_true and processes the user-controlled recipeId without authorization or ownership checks. Authentication and user interaction are unnecessary; an attacker can replace wprm_instacart_combinations for any supplied post ID, altering stored Instacart associations.

The record

CVE
CVE-2026-1558
Published
Feb 27, 2026
Updated
Feb 27, 2026
Vendor
Bootstrapped Ventures
Product
WP Recipe Maker
Classifications
CWE-639, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 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=* <=10.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bootstrapped Ventures · WP Recipe Makerversion=* <=10.3.2

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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.

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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-639Authorization Bypass Through User-Controlled Key
T1565.001Stored Data Manipulation

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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