CVE-2023-0660Public exploitNetwork attack vector

Stored XSS via unescaped shortcode attributes

Published Mar 27, 2023 · Updated Feb 19, 2025

Stored XSS in Nextendweb Smart Slider 3 before 3.5.1.14 allows remote authenticated users to inject scripts via shortcode attributes. The plugin renders contributor-supplied shortcode attributes in a page or post without sufficient validation or output escaping. Contributor-level access is required; the stored script executes when another user views the affected content, enabling actions in that user's browser context.

CVSS severity5.4
Medium
EPSS probability0.48%
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 Nextendweb Smart Slider 3 before 3.5.1.14 allows remote authenticated users to inject scripts via shortcode attributes. The plugin renders contributor-supplied shortcode attributes in a page or post without sufficient validation or output escaping. Contributor-level access is required; the stored script executes when another user views the affected content, enabling actions in that user's browser context.

The record

CVE
CVE-2023-0660
Published
Mar 27, 2023
Updated
Feb 19, 2025
Vendor
Nextendweb
Product
Smart Slider 3
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 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 <3.5.1.14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nextendweb · Smart Slider 3version=0 <3.5.1.14

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
5.4CISA-ADPCVSS: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')
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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