CVE-2023-0365Public exploitNetwork attack vector

Stored XSS via unescaped shortcode attributes

Published Mar 20, 2023 · Updated Feb 26, 2025

Stored cross-site scripting in React Webcam 1.2.0 and earlier allows remote authenticated users to inject script through shortcode attributes. The shortcode renderer outputs the dir attribute and other attacker-controlled attributes into page content without validation or contextual escaping. Contributor-level access is required to save the shortcode, and the stored script executes when another user views the affected page or post.

CVSS severity5.4
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in React Webcam 1.2.0 and earlier allows remote authenticated users to inject script through shortcode attributes. The shortcode renderer outputs the dir attribute and other attacker-controlled attributes into page content without validation or contextual escaping. Contributor-level access is required to save the shortcode, and the stored script executes when another user views the affected page or post.

The record

CVE
CVE-2023-0365
Published
Mar 20, 2023
Updated
Feb 26, 2025
Vendor
Moz Morris
Product
react-webcam
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2025Record 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 <=1.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moz Morris · react-webcamversion=0 <=1.2.0

Published CVSS scores

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.

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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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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