Skip to main content

Post Grid Ultimate CVE-2026-16260

| EUVDEUVD-2026-64216 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-08-22 contact@wpscan.com GHSA-9jf6-vw36-77hj
6.8
CVSS 3.1 · Vendor: wpscan
Share

Severity by source

Vendor (wpscan) PRIMARY
6.8 MEDIUM
AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
vuln.today AI
9.0 CRITICAL

Contributor maps to PR:L; exploit crosses into administrator security context warranting S:C; administrator must open item so UI:R applies.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Primary rating from Vendor (wpscan).

CVSS VectorVendor: wpscan

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Aug 23, 2026 - 16:23 vuln.today
CVSS changed
Aug 23, 2026 - 16:22 NVD
6.8 (MEDIUM)
Patch available
Aug 22, 2026 - 07:01 EUVD
CVE Published
Aug 22, 2026 - 06:16 cve.org
UNKNOWN (no severity yet)
CVE Published
Aug 22, 2026 - 06:16 cve.org
MEDIUM 6.8

DescriptionCVE.org

The Post Grid, Slider & Carousel Ultimate WordPress plugin before 1.8.1 does not sanitise and escape one of its custom post type settings before outputting it in an HTML attribute on the admin edit screen, allowing users with the Contributor role and above to inject JavaScript that executes in the session of any administrator who opens the affected item.

AnalysisAI

Stored cross-site scripting in the Post Grid, Slider & Carousel Ultimate WordPress plugin (all versions before 1.8.1) allows any authenticated Contributor-level user to inject persistent JavaScript into a custom post type setting that executes in an administrator's browser session when the admin opens the poisoned item's edit screen. The attack effectively escalates a Contributor's limited privileges to full administrative control over the WordPress instance without any interaction from the attacker beyond the initial payload submission. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Install
technique details hidden
C2
technique details hidden
Execute
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires a valid WordPress account with the Contributor role or higher on the target installation - unauthenticated external attackers cannot exploit this directly. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The NVD-assigned CVSS 3.1 score of 6.8 uses PR:H (high privileges required), which appears to misclassify the WordPress Contributor role - Contributor is a low-privilege authenticated user and maps to PR:L under standard CVSS guidance. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade the Post Grid, Slider & Carousel Ultimate plugin to version 1.8.1 or later; this is the earliest confirmed clean release per the WPScan advisory at https://wpscan.com/vulnerability/87c95831-d1b4-42b2-8fc7-6cba60fca400/. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2016-10033 CRITICAL POC
9.8 Dec 30

The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra para

CVE-2016-10045 CRITICAL POC
9.8 Dec 30

The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the mail comman

CVE-2023-6553 CRITICAL POC
9.8 Dec 15

The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1

CVE-2024-5084 CRITICAL POC
9.8 May 23

The Hash Form - Drag & Drop Form Builder plugin for WordPress is vulnerable to arbitrary file uploads due to missing fil

CVE-2024-44000 CRITICAL POC
9.8 Oct 20

Authentication bypass in the LiteSpeed Cache WordPress plugin (versions prior to 6.5.0.1) allows unauthenticated remote

CVE-2024-8353 CRITICAL POC
9.8 Sep 28

The GiveWP - Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all

CVE-2020-36847 CRITICAL POC
9.8 Jul 12

The Simple File List plugin for WordPress through version 4.2.2 contains an unauthenticated remote code execution vulner

CVE-2025-11749 CRITICAL POC
9.8 Nov 05

The AI Engine WordPress plugin through version 3.1.3 exposes Bearer Token values through the /mcp/v1/ REST API endpoint

CVE-2025-27007 CRITICAL POC
9.8 May 01

The SureTriggers WordPress plugin through version 1.0.82 contains a privilege escalation vulnerability that allows unaut

CVE-2016-1209 CRITICAL POC
9.8 May 14

The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks via

CVE-2024-4443 CRITICAL POC
9.8 May 22

The Business Directory Plugin - Easy Listing Directories for WordPress plugin for WordPress is vulnerable to time-based

CVE-2026-63030 CRITICAL POC
9.8 Jul 17

Remote code execution in WordPress 6.9.x (before 6.9.5) and 7.0.x (before 7.0.2) arises from a REST API batch endpoint r

Share

CVE-2026-16260 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy