CVE-2023-0364Public exploitNetwork attack vector

Stored XSS via unescaped modal class attribute

Published Mar 20, 2023 · Updated Feb 26, 2025

Stored XSS in real.Kit before 5.1.1 allows remote authenticated users to execute scripts through a crafted modal shortcode. The modal shortcode writes an attacker-controlled class attribute into page output without validation or context-appropriate escaping. Contributor-level access is required to save the payload, and execution occurs only when another user views the page containing the shortcode.

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 XSS in real.Kit before 5.1.1 allows remote authenticated users to execute scripts through a crafted modal shortcode. The modal shortcode writes an attacker-controlled class attribute into page output without validation or context-appropriate escaping. Contributor-level access is required to save the payload, and execution occurs only when another user views the page containing the shortcode.

The record

CVE
CVE-2023-0364
Published
Mar 20, 2023
Updated
Feb 26, 2025
Vendor
realmaster-1
Product
real.Kit
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 <5.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

realmaster-1 · real.Kitversion=0 <5.1.1

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')
T1059.007JavaScript/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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