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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
jetpack Jetpack affected
Version Status Constraints
9.1 affected —

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Project Subscriptions

Vendors Products
Automattic Subscribe
Jetpack Boost Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://wordpress.org/plugins/jetpack cve-icon
https://www.exploit-db.com/exploits/50735 cve-icon
https://www.vulncheck.com/advisories/wordpress-plugin-jetpack-cross-site-scripting-via-grunion-form-view-php cve-icon
History

Sun, 10 May 2026 12:45:00 +0000

Type Values Removed Values Added
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.
Title WordPress Plugin Jetpack 9.1 Cross Site Scripting via grunion-form-view.php
First Time appeared Automattic
Automattic jetpack Boost
Weaknesses CWE-79
CPEs cpe:2.3:a:automattic:jetpack_boost:9.1:*:*:*:*:*:*:*
Vendors & Products Automattic
Automattic jetpack Boost
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-10T12:12:52.940Z

Reserved: 2026-01-11T13:34:26.332Z

Link: CVE-2022-50958

cve-icon Vulnrichment

No data.

cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses