CVE-2026-57356Public exploitNetwork attack vector

Unauthenticated stored XSS via unsanitized variation attributes

Published Jul 2, 2026 · Updated Jul 2, 2026

Stored XSS in MoreConvert Wishlist for WooCommerce 1.9.19 and earlier allows remote attackers to inject scripts through variation attributes. The plugin stores untrusted variation-attribute values in product metadata without proper WooCommerce validation or sanitization, allowing saved values to reach wishlist-page output as executable markup. No account is required to plant the payload, but a visitor must open the affected wishlist page for the stored script to execute in that visitor's browser.

CVSS severity7.1
High
EPSS probability0.25%
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 MoreConvert Wishlist for WooCommerce 1.9.19 and earlier allows remote attackers to inject scripts through variation attributes. The plugin stores untrusted variation-attribute values in product metadata without proper WooCommerce validation or sanitization, allowing saved values to reach wishlist-page output as executable markup. No account is required to plant the payload, but a visitor must open the affected wishlist page for the stored script to execute in that visitor's browser.

The record

CVE
CVE-2026-57356
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
MoreConvert
Product
MoreConvert Wishlist for WooCommerce
Classifications
CWE-79, CAPEC-592, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 2026Record 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=n/a <=1.9.19 changes=[{"at":"1.9.20","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MoreConvert · MoreConvert Wishlist for WooCommerceversion=n/a <=1.9.19 changes=[{"at":"1.9.20","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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1189Drive-by Compromise

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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