TI-2023-06086 Aliases CVE-2023-6645 GHSA-3c6g-c26j-3686

Post Grid Combo – 36+ Gutenberg Blocks <= 2.2.64 - Authenticated (Contributor+) Cross-Site Scripting

LOW 28CWE-79Published 2024-01-11 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The Post Grid Combo – 36+ Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom JS parameter in all versions up to, and including, 2.2.64 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00345 28th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
PickPlugins	Post Grid	up to 2.2.64	—	No fix listed	CNA

Post Grid VendorPickPlugins Affected up to 2.2.64 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:pickplugins:post_grid_combo::::::wordpress::*	up to 2.2.64	Vulnerable	PickPlugins

cpe:2.3:a:pickplugins:post_grid_combo:*:*:*:*:*:wordpress:*:* Versions up to 2.2.64 Vulnerable ·PickPlugins

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-6645
2026-10-03 Alias added: GHSA-3c6g-c26j-3686

References

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/ab777672-6eef-4078-932d-24bb784107fa?source=cve

Other 1

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3010342%40post-grid%2Ftrunk&old=2999466%40post-grid%2Ftrunk&sfp_email=&sfph_mail=

TI-2023-06468 Post Grid Combo – 36+ Gutenberg Blocks <= 2.2.68 - Information Exposure via get_posts API Endpoint CVSS 3.1HIGH 7.5
TI-2023-21081 WordPress Post Grid Plugin <= 2.2.50 is vulnerable to Sensitive Data Exposure CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences