CVE-2023-0537Public exploitNetwork attack vector

Contributor-level browser script execution via unescaped shortcode attributes

Published May 8, 2023 · Updated Jan 29, 2025

Stored XSS in ShapedPlugin LLC Product Slider for WooCommerce 1.1.7 and earlier allows remote authenticated users to inject web scripts. The psfwl_guten_block shortcode outputs its heading_tag attribute into page markup without validation or escaping. Contributor-level access is sufficient to store an event-handler payload that executes when another user views the injected page.

CVSS severity5.4
Medium
EPSS probability0.50%
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 ShapedPlugin LLC Product Slider for WooCommerce 1.1.7 and earlier allows remote authenticated users to inject web scripts. The psfwl_guten_block shortcode outputs its heading_tag attribute into page markup without validation or escaping. Contributor-level access is sufficient to store an event-handler payload that executes when another user views the injected page.

The record

CVE
CVE-2023-0537
Published
May 8, 2023
Updated
Jan 29, 2025
Vendor
ShapedPlugin LLC
Product
Product Slider for WooCommerce
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ShapedPlugin LLC · Product Slider for WooCommerceversion=0 <=1.1.7

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

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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