CVE-2021-3327Public exploitNetwork attack vector

Cross-site scripting via unsanitized post_title parameter

Published Mar 19, 2021 · Updated Aug 3, 2024

Cross-site scripting in Ovation Dynamic Content for Elementor 1.10.1 allows remote authenticated users to execute JavaScript via post_title. The plugin places the attacker-controlled parameter into a rendered input value without proper sanitization or validation, causing injected markup to be interpreted by the browser. An authenticated request and subsequent victim interaction are required; execution occurs in the victim's browser and can expose or manipulate that session.

CVSS severity5.4
Medium
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Ovation Dynamic Content for Elementor 1.10.1 allows remote authenticated users to execute JavaScript via post_title. The plugin places the attacker-controlled parameter into a rendered input value without proper sanitization or validation, causing injected markup to be interpreted by the browser. An authenticated request and subsequent victim interaction are required; execution occurs in the victim's browser and can expose or manipulate that session.

The record

CVE
CVE-2021-3327
Published
Mar 19, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, CAPEC-63, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 19, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/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.

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
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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