What’s Vulnerable › Vulnerabilities

CVE-2021-38317: Konnichiwa! Membership <= 0.8.3 Reflected Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-09 · updated 2026-06-17
• Weakness: CWE-79

Description

The Konnichiwa! Membership WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the plan_id parameter in the ~/views/subscriptions.html.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.8.3.

Affected products

• Konnichiwa! Membership: through 0.8.3

References

• https://plugins.trac.wordpress.org/browser/konnichiwa/trunk/views/subscriptions.html.php?rev=1625922#L7
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38317
• https://plugins.trac.wordpress.org/browser/konnichiwa/trunk/views/subscriptions.html.php?rev=1625922#L7
• https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38317

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