CVE-2023-0368Public exploitNetwork attack vector

Contributor-level stored XSS via unescaped shortcode attribute

Published Jun 19, 2023 · Updated Dec 12, 2024

Stored XSS in Responsive Tabs For WPBakery Page Builder 1.1 and earlier allows remote authenticated users to execute script in visitors' browsers. The vca_tabs_parent shortcode outputs the vca_tabs_color_theme attribute into page markup without validation or escaping, leaving an injected event handler executable. Contributor-level access is required to save the crafted shortcode, and a visitor must interact with the resulting page to trigger the script.

CVSS severity5.4
Medium
EPSS probability0.44%
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 Responsive Tabs For WPBakery Page Builder 1.1 and earlier allows remote authenticated users to execute script in visitors' browsers. The vca_tabs_parent shortcode outputs the vca_tabs_color_theme attribute into page markup without validation or escaping, leaving an injected event handler executable. Contributor-level access is required to save the crafted shortcode, and a visitor must interact with the resulting page to trigger the script.

The record

CVE
CVE-2023-0368
Published
Jun 19, 2023
Updated
Dec 12, 2024
Vendor
vcaddon
Product
Responsive Tabs For WPBakery Page Builder
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 12, 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=0 <=1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

vcaddon · Responsive Tabs For WPBakery Page Builderversion=0 <=1.1

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
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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