CVE-2025-48308 | BDVDB-2026-291391 Detail

nonletterNewsletter subscription optin module

Description#

Cross-Site Request Forgery (CSRF) vulnerability in nonletter Newsletter subscription optin module newsletter-subscription-widget-for-sendblaster allows Stored XSS.This issue affects Newsletter subscription optin module: from n/a through <= 1.2.9.

Impact#

Stored XSS

Weaknesses#

CWE-352 Cross-Site Request Forgery (CSRF)

References#

https://patchstack.com/database/Wordpress/Plugin/newsletter-subscription-widget-for-sendblaster/vulnerability/wordpress-newsletter-subscription-optin-module-plugin-1-2-9-cross-site-request-forgery-csrf-to-stored-xss-vulnerability?_s_id=cve

Exploit#

No public exploit known

History#

Version 12025-08-28Record published in the CVE List.
Version 22026-04-28Most recent update recorded in the CVE List.

Published

Published: 2025-08-28
Last modified: 2026-04-28

Vendor information

Vendor: nonletter
Product: Newsletter subscription optin module

All nonletter vulnerabilities

Score

7.1 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 2.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Cross-Site Request Forgery

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 1.2.9
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.1 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	Required
Scope	Changed
Confidentiality	Low
Integrity	Low
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).