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CVE-2022-50958: WordPress Plugin Jetpack 9.1 Cross Site Scripting via grunion-form-view.php

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-10 · updated 2026-10-06
• Weakness: CWE-79

Description

WordPress Plugin Jetpack 9.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by manipulating the post_id parameter. Attackers can craft URLs to the grunion-form-view.php endpoint with script payloads in the post_id parameter to execute arbitrary JavaScript in victim browsers.

Affected products

• Jetpack: 9.1

References

• https://wordpress.org/plugins/jetpack
• https://www.exploit-db.com/exploits/50735
• https://www.vulncheck.com/advisories/wordpress-plugin-jetpack-cross-site-scripting-via-grunion-form-view-php

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