CVE-2021-4445Public exploitNetwork attack vector

Subscriber-level option overwrite via unchecked AJAX parameter

Published Oct 16, 2024 · Updated Apr 8, 2026

Missing authorization in Leap13 Premium Addons for Elementor 4.5.1 and earlier allows remote authenticated users to alter WordPress options. The pa_dismiss_admin_notice AJAX action uses the attacker-controlled notice parameter as an option key and writes the fixed value 1 without capability, nonce, or allowlist checks. Subscriber-level access is sufficient to rename the site, enable user registration, or make the blog unusable by changing selected options.

CVSS severity6.5
Medium
EPSS probability0.40%
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 Leap13 Premium Addons for Elementor 4.5.1 and earlier allows remote authenticated users to alter WordPress options. The pa_dismiss_admin_notice AJAX action uses the attacker-controlled notice parameter as an option key and writes the fixed value 1 without capability, nonce, or allowlist checks. Subscriber-level access is sufficient to rename the site, enable user registration, or make the blog unusable by changing selected options.

The record

CVE
CVE-2021-4445
Published
Oct 16, 2024
Updated
Apr 8, 2026
Vendor
Leap13
Product
Premium Addons for Elementor
Classifications
CWE-862, T1491.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=4.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Leap13 · Premium Addons for Elementorversion=0 <=4.5.1

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1491.002External Defacement

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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