TI-2023-04399 Aliases CVE-2023-4772 GHSA-67hg-5992-87wq

Newsletter <= 7.8.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

LOW 29CWE-79Published 2023-09-07 · 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 Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'newsletter_form' shortcode in versions up to, and including, 7.8.9 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 0.00508 43rd 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
satollo	Newsletter – Send awesome emails from WordPress	up to 7.8.9	—	No fix listed	CNA

Newsletter – Send awesome emails from WordPress Vendorsatollo Affected up to 7.8.9 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:thenewsletterplugin:newsletter::::::wordpress::*	up to 7.8.9	Vulnerable	Thenewsletterplugin

cpe:2.3:a:thenewsletterplugin:newsletter:*:*:*:*:*:wordpress:*:* Versions up to 7.8.9 Vulnerable ·Thenewsletterplugin

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-4772
2026-10-03 Alias added: GHSA-67hg-5992-87wq

References

Patch 2

Other 1

https://plugins.trac.wordpress.org/browser/newsletter/tags/7.8.9/subscription/subscription.php#L1653

TI-2021-06784 Giveaway <= 1.2.2 - Authenticated SQL Injection CVSS 3.1HIGH 7.2
TI-2024-12920 Head, Footer and Post Injections <= 3.3.0 - Authenticated (Administrator+) PHP Code Injection in Multisite Environments CVSS 3.1HIGH 7.2
TI-2026-65981 Newsletter <= 9.4.0 - Unauthenticated Stored Cross-Site Scripting via 'np1' Custom Field Parameter CVSS 3.1HIGH 7.2
TI-2026-62415 Insufficiently protected credentials in satollo Newsletter – Send awesome emails from… CVSS 3.1MEDIUM 5.3
TI-2024-04939 Newsletter <= 8.3.4 - Unauthenticated Stored Cross-Site Scripting via np1 CVSS 3.1MEDIUM 6.4
TI-2026-61829 Newsletter <= 9.3.8 - Reflected Cross-Site Scripting via 'nn' Parameter CVSS 3.1MEDIUM 6.1

See all 7 →

Sources

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