CVE-2021-24351Public exploitNetwork attack vector

Reflected XSS via unsanitized AJAX fields

Published Jun 14, 2021 · Updated Aug 3, 2024

Reflected XSS in the theplus_more_post AJAX action in The Plus Addons for Elementor before 4.1.12 allows remote attackers to run script. The handler reflects inadequately sanitized request fields into its HTTP response, allowing supplied markup or script to enter the rendered page. A victim must follow a crafted request; resulting script runs in the affected site's browser origin and can read or alter browser-accessible data.

CVSS severity6.1
Medium
EPSS probability2.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in the theplus_more_post AJAX action in The Plus Addons for Elementor before 4.1.12 allows remote attackers to run script. The handler reflects inadequately sanitized request fields into its HTTP response, allowing supplied markup or script to enter the rendered page. A victim must follow a crafted request; resulting script runs in the affected site's browser origin and can read or alter browser-accessible data.

The record

CVE
CVE-2021-24351
Published
Jun 14, 2021
Updated
Aug 3, 2024
Vendor
POSIMYTH Innovations
Product
The Plus Addons for Elementor
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 14, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=4.1.12 <4.1.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

POSIMYTH Innovations · The Plus Addons for Elementorversion=4.1.12 <4.1.12

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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