TI-2023-05249 Aliases CVE-2023-5706 GHSA-x72p-747c-h6vp

VK Blocks <= 1.63.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block

LOW 29CWE-79Published 2023-11-22 · 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 VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vk-blocks/ancestor-page-list' block in all versions up to, and including, 1.63.0.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions 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 0.00635 50th 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
Vektor,Inc.	VK Blocks	up to 1.63.0.1	—	No fix listed	CNA

VK Blocks VendorVektor,Inc. Affected up to 1.63.0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:vektor-inc:vk_blocks:::::-:wordpress::	up to 1.63.0.1	Vulnerable	Vektor,Inc.

cpe:2.3:a:vektor-inc:vk_blocks:*:*:*:*:-:wordpress:*:* Versions up to 1.63.0.1 Vulnerable ·Vektor,Inc.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-5706
2026-10-03 Alias added: GHSA-x72p-747c-h6vp
2026-10-31 EPSS moved to the 50th–90th percentile

References

Patch 4

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/05dd7c96-7880-44a8-a06f-037bc627fd8d?source=cve

TI-2023-12515 Cross-site scripting in Vektor,Inc. VK Blocks and VK Blocks Pro CVSS 3.1MEDIUM 5.4
TI-2023-12514 Cross-site scripting in Vektor,Inc. VK Blocks and VK Blocks Pro CVSS 3.1MEDIUM 5.4
TI-2023-00553 VK Blocks <= 1.57.0.5 - Authenticated(Contributor+) Settings Update CVSS 3.1MEDIUM 4.3
TI-2023-00552 VK Blocks <= 1.57.0.5 - Authenticated(Contributor+) Settings Update CVSS 3.1MEDIUM 4.3

Sources

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