TI-2023-04723 Aliases CVE-2023-5135 GHSA-rj9v-45x6-hwjj

Simple Cloudflare Turnstile <= 1.23.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

LOW 30CWE-79Published 2023-09-26 · 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 Simple Cloudflare Turnstile plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'gravity-simple-turnstile' shortcode in versions up to, and including, 1.23.1 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 0.00744 54th percentileScored 2026-11-07

Public exploit Yes 3 exploit referencesTagged by NVD

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
elliotvs	Simple CAPTCHA Alternative with Cloudflare Turnstile	up to 1.23.1	—	No fix listed	CNA

Simple CAPTCHA Alternative with Cloudflare Turnstile Vendorelliotvs Affected up to 1.23.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:replywp:simple_cloudfare_turnstile::::::wordpress::*	before 1.23.2	Vulnerable	Replywp

cpe:2.3:a:replywp:simple_cloudfare_turnstile:*:*:*:*:*:wordpress:*:* Versions before 1.23.2 Vulnerable ·Replywp

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-5135
2026-10-03 Alias added: GHSA-rj9v-45x6-hwjj

References

Exploit 3

Patch 1

https://plugins.trac.wordpress.org/changeset/2970368/simple-cloudflare-turnstile#file1

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/91f6c9d3-641d-42f7-bf11-e3c3a44eeb76?source=cve

TI-2024-11524 Code injection in elliotvs Coupon Affiliates – Affiliate Plugin for WooCommerce CVSS 3.1MEDIUM 6.5
TI-2026-85001 Stored XSS in Simple CAPTCHA with Cloudflare Turnstile plugin CVSS 3.1MEDIUM 6.4
TI-2025-03165 Cross-site scripting in elliotvs Coupon Affiliates – Affiliate Plugin for WooCommerce CVSS 3.1MEDIUM 6.1
TI-2022-04562 Freemius SDK <= 2.4.2 - Missing Authorization Checks CVSS 3.1MEDIUM 6.3
TI-2024-12404 Freemius <= 2.10.1 - Reflected DOM-Based Cross-Site Scripting via url Parameter CVSS 3.1MEDIUM 6.1

Sources

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