TI-2024-00576 Aliases CVE-2024-0621 GHSA-362w-hwf4-9hcx

Simple Share Buttons Adder <= 8.4.11 - Authenticated(Administrator+) Stored Cross-Site Scripting via CSS Settings

LOW 23CWE-79Published 2024-02-20 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
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 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The Simple Share Buttons Adder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 8.4.11 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00491 42nd 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
davidoffneal	Simple Share Buttons Adder	up to 8.4.11	—	No fix listed	CNA

Simple Share Buttons Adder Vendordavidoffneal Affected up to 8.4.11 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:simplesharebuttons:simple_share_buttons_adder::::::wordpress::*	before 8.4.12	Vulnerable	Simple Share Buttons

cpe:2.3:a:simplesharebuttons:simple_share_buttons_adder:*:*:*:*:*:wordpress:*:* Versions before 8.4.12 Vulnerable ·Simple Share Buttons

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-0621
2026-10-03 Alias added: GHSA-362w-hwf4-9hcx

References

Patch 2

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/93ab9f1a-26ce-466a-a5d3-d2046ec8f94d?source=cve

Other 1

https://advisory.abay.sh/cve-2024-0621

TI-2022-23382 WordPress Simple Share Buttons Adder Plugin <= 8.4.7 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
TI-2015-07680 The simple-share-buttons-adder plugin before 6.0.0 for WordPress has XSS. CVSS 3.0MEDIUM 6.1

Sources

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