Membership Plugin up to 3.2.18 on WordPress Invoice Setting cross site scripting

Summaryinfo

A vulnerability was found in Membership Plugin up to 3.2.18 on WordPress. It has been classified as problematic. Impacted is an unknown function of the component Invoice Setting Handler. This manipulation causes cross site scripting. This vulnerability is handled as CVE-2026-1304. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Membership Plugin up to 3.2.18 on WordPress and classified as problematic. Affected by this vulnerability is an unknown code block of the component Invoice Setting Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

The Membership Plugin – Restrict Content for WordPress is vulnerable to Stored Cross-Site Scripting via multiple invoice settings fields in all versions up to, and including, 3.2.18 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-1304. The exploitation appears to be easy. The attack can be launched remotely. The exploitation needs additional levels of successful authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• Membership Plugin

Version

• 3.2.0
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.2.5
• 3.2.6
• 3.2.7
• 3.2.8
• 3.2.9
• 3.2.10
• 3.2.11
• 3.2.12
• 3.2.13
• 3.2.14
• 3.2.15
• 3.2.16
• 3.2.17
• 3.2.18

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒
• 🔒

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Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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