TI-2023-04698 Aliases CVE-2023-5109 GHSA-fq8c-93h2-hrr9

Cross-site scripting in onlineoptimisation WP Mailto Links – Protect Email Addresses

LOW 29CWE-79Published 2023-10-20 · 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 WP Mailto Links – Protect Email Addresses plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'wpml_mailto' shortcode in versions up to, and including, 3.1.3 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. This was partially patched in version 3.1.3 and fully patched in version 3.1.4.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00485 42nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged 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
onlineoptimisation	WP Mailto Links – Protect Email Addresses	up to 3.1.3	—	No fix listed	CNA

WP Mailto Links – Protect Email Addresses Vendoronlineoptimisation Affected up to 3.1.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ironikus:wp_mailto_links::::::wordpress::*	before 3.1.4	Vulnerable	Ironikus

cpe:2.3:a:ironikus:wp_mailto_links:*:*:*:*:*:wordpress:*:* Versions before 3.1.4 Vulnerable ·Ironikus

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-5109
2026-10-03 Alias added: GHSA-fq8c-93h2-hrr9

References

Exploit 1

https://plugins.trac.wordpress.org/browser/wp-mailto-links/tags/3.1.2/core/includes/classes/class-wp-mailto-links-validate.php#L582

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/ec882062-0059-47ca-a007-3347e7adb70b?source=cve

TI-2024-01192 Cross-site scripting in onlineoptimisation Email Encoder – Protect Email Addresses and… CVSS 3.1MEDIUM 6.4
TI-2023-25929 WordPress Email Encoder Bundle Plugin <= 2.1.8 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 6.5
TI-2023-06466 Cross-site scripting in onlineoptimisation Email Encoder – Protect Email Addresses and… CVSS 3.1MEDIUM 6.4
TI-2023-04243 Email Encoder <= 2.1.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVSS 3.1MEDIUM 6.4
TI-2026-02439 Cross-site scripting in onlineoptimisation Email Encoder – Protect Email Addresses and… CVSS 3.1MEDIUM 6.4
TI-2025-33409 WordPress WP Mailto Links Plugin <= 3.1.4 - Cross Site Scripting (XSS) Vulnerability CVSS 3.1MEDIUM 5.9

Sources

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