CVE-2026-81288Network attack vectorHinoki check available

Unauthenticated DOM-based XSS via permitted script tags

Published Sep 2, 2026 · Updated Sep 2, 2026

DOM-based XSS in WP Swings Upsell Funnel Builder for WooCommerce 3.1.5 and earlier allows remote attackers to execute browser script. The wocuf_lite_allow_script_tags() function permits script elements in content processed for offer pages instead of removing them during HTML sanitization. No account is required to supply the input, but a visitor must interact with the affected page; script execution can access or modify data available to that browser session.

CVSS severity7.1
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

DOM-based XSS in WP Swings Upsell Funnel Builder for WooCommerce 3.1.5 and earlier allows remote attackers to execute browser script. The wocuf_lite_allow_script_tags() function permits script elements in content processed for offer pages instead of removing them during HTML sanitization. No account is required to supply the input, but a visitor must interact with the affected page; script execution can access or modify data available to that browser session.

The record

CVE
CVE-2026-81288
Published
Sep 2, 2026
Updated
Sep 2, 2026
Vendor
WP Swings
Product
Upsell Funnel Builder for WooCommerce
Classifications
CWE-79, CAPEC-588, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2026Record 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=n/a <=3.1.5 changes=[{"at":"3.1.6","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP Swings · Upsell Funnel Builder for WooCommerceversion=n/a <=3.1.5 changes=[{"at":"3.1.6","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-588DOM-Based XSS
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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