TI-2024-04174 Aliases CVE-2024-4487 GHSA-9mgf-hh2m-346c

Blocksy Companion <= 2.0.45 - Authenticated (Contributor+) Stored Cross-Site Scripting via SVG Uploads

LOW 29CWE-79Published 2024-05-11 · 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 Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG uploads in versions up to, and including, 2.0.45 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, 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 0.00429 37th 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
creativethemeshq	Blocksy Companion	up to 2.0.45	—	No fix listed	CNA

Blocksy Companion Vendorcreativethemeshq Affected up to 2.0.45 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:creativethemes:blocksy_companion::::::wordpress::*	before 2.0.46	Vulnerable	creativethemeshq

cpe:2.3:a:creativethemes:blocksy_companion:*:*:*:*:*:wordpress:*:* Versions before 2.0.46 Vulnerable ·creativethemeshq

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-4487
2026-10-03 Alias added: GHSA-9mgf-hh2m-346c

References

TI-2023-01796 Blocksy Companion < 1.8.82 - Subscriber+ Draft Post Access CVSS 3.1MEDIUM 4.3
TI-2024-21035 WordPress Blocksy Companion plugin <= 2.0.28 - Cross Site Request Forgery (CSRF) vulnerability CVSS 3.1HIGH 8.8
TI-2024-02222 Blocksy Companion <= 2.0.31 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
TI-2023-09697 WordPress Blocksy Companion Plugin <= 1.8.67 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 5.5
TI-2024-23502 WordPress Blocksy Companion plugin <= 2.0.42 - Server Side Request Forgery (SSRF) vulnerability CVSS 3.1MEDIUM 4.9

Sources

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