CVE-2022-50958

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.

Overview

State

—

Assigner (CNA)

—

CVSS severity

medium

CVSS score

6.1 / 10

CVSS vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Effective score

6.1 / 10 MEDIUM source: CNA overview

CWE(s)

—

Reserved

—

Published

—

Last updated

—

Source

https://www.tenable.com/cve/CVE-2022-50958

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published

2026-05-10 13:16:33 UTC

NVD last modified

2026-05-12 14:24:15 UTC

NVD CVSS v3.1

6.1 / 10 MEDIUM source: disclosure@vulncheck.com

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability subscore

2.8 / 10

Impact subscore

2.7 / 10

EPSS score

0.0009 (probability of exploitation in next 30 days)

EPSS percentile

25.15% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD-assigned CWE(s): CWE-79 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2022-55979

Assigner

VulnCheck

Published

May 10, 2026, 12:12:52 PM

Updated

May 24, 2026, 1:37:27 AM

EUVD base score (CVSS 4.0)

5.1 / 10
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

EUVD-reported EPSS

0.0900

Vendors

jetpack

Products

Jetpack (9.1)

ENISA 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.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (6)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://nvd.nist.gov/vuln/detail/CVE-2022-50958 tenable:nvd.nist.gov
• https://wordpress.org/plugins/jetpack tenable:wordpress.org
• https://www.cve.org/CVERecord?id=CVE-2022-50958 tenable:www.cve.org
• https://www.exploit-db.com/exploits/50735 tenable:www.exploit-db.com
• https://www.first.org/epss/ tenable:www.first.org
• https://www.vulncheck.com/advisories/wordpress-plugin-jetpack-cross-site-scripting-via-grunion-form-view-php tenable:www.vulncheck.com

• Security Advisory Bulletin 064 | Ubiquiti Community
  web:community.ui.com

  Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...

  2026-05-26 03:07 UTC
• NVD - Home
  web:nvd.nist.gov

  The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...

  2026-05-26 03:07 UTC
• KB5091158 - Description of the security update for SQL Server 2022 GDR ...
  web:support.microsoft.com

  Summary Improvements and fixes included in this update How to obtain and install the update More information File information Information about protection and security Summary This security update contains fixes and resolves vulnerabilities. To learn more about the vulnerabilities, see the following security advisories: CVE -2026-40370 - SQL Server Remote Code Execution Vulnerability The ...

  2026-05-26 03:07 UTC
• Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...
  web:support.servicenow.com

  Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

  2026-05-26 03:07 UTC
• Google Translate
  web:translate.google.com

  Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.

  2026-05-26 03:07 UTC
• Known Exploited Vulnerabilities Catalog - CISA
  web:www.cisa.gov

  For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild. Organizations should use the KEV catalog as an input to their vulnerability management prioritization framework.

  2026-05-26 03:07 UTC
• CVE: Common Vulnerabilities and Exposures
  web:www.cve.org

  At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

  2026-05-26 03:07 UTC
• Grammarly: Free AI Writing Assistance
  web:www.grammarly.com

  Grammarly makes AI writing convenient. Work smarter with personalized AI guidance and text generation on any app or website.

  2026-05-26 03:07 UTC
• Microsoft KB Catalog: Updates, Issues, & Feedback - NinjaOne
  web:www.ninjaone.com

  Catalog of Microsoft KB updates with insights on performance & user sentiment. Find out what's working, what's not, & make informed decisions.

  2026-05-26 03:07 UTC
• VirusTotal - Home
  web:www.virustotal.com

  VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.

  2026-05-26 03:07 UTC

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