CVE-2026-2233Network attack vector

Unauthenticated post modification via unchecked post_id

Published Mar 15, 2026 · Updated Mar 15, 2026

Missing authorization in weDevs WP User Frontend 4.2.8 and earlier allows remote attackers to modify arbitrary WordPress posts. The draft_post() handler accepts an attacker-controlled post_id and updates the referenced post without a capability check. No authentication is required; reachable deployments expose existing posts to content overwrite or unpublishing, with no reported confidentiality or availability impact.

CVSS severity5.3
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in weDevs WP User Frontend 4.2.8 and earlier allows remote attackers to modify arbitrary WordPress posts. The draft_post() handler accepts an attacker-controlled post_id and updates the referenced post without a capability check. No authentication is required; reachable deployments expose existing posts to content overwrite or unpublishing, with no reported confidentiality or availability impact.

The record

CVE
CVE-2026-2233
Published
Mar 15, 2026
Updated
Mar 15, 2026
Vendor
HappyMonster
Product
WP User Frontend
Classifications
CWE-862, T1565.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 15, 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=* <=4.2.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HappyMonster · WP User Frontendversion=* <=4.2.8

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 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-862Missing Authorization
T1565.003Stored 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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