CVE-2026-2917Public exploitNetwork attack vector

Contributor-level post disclosure via unchecked clone target

Published Mar 11, 2026 · Updated Mar 11, 2026

Insecure direct object reference in Happy Addons for Elementor 3.21.0 and earlier allows remote authenticated users to clone others' posts. The ha_duplicate_thing handler accepts a user-controlled post_id, while can_clone checks only edit_posts and uses a nonce not bound to that object. Contributor-level access and a nonce from an authorized post are sufficient to copy another user's content, metadata, and taxonomies into an attacker-owned draft.

CVSS severity5.4
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

Insecure direct object reference in Happy Addons for Elementor 3.21.0 and earlier allows remote authenticated users to clone others' posts. The ha_duplicate_thing handler accepts a user-controlled post_id, while can_clone checks only edit_posts and uses a nonce not bound to that object. Contributor-level access and a nonce from an authorized post are sufficient to copy another user's content, metadata, and taxonomies into an attacker-owned draft.

The record

CVE
CVE-2026-2917
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
HappyMonster
Product
Happy Addons for Elementor
Classifications
CWE-639
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 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=* <=3.21.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HappyMonster · Happy Addons for Elementorversion=* <=3.21.0

Published CVSS scores

5.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key

Public exploit references

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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