CVE-2026-13362: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in sendpulse SendPulse Email Marketing Newsletter
The SendPulse Email Marketing Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via _sp_form_code Post Meta in all versions up to, and including, 2.2.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the attacker to create a sendpulse_form post containing a benign SendPulse loader script tag alongside arbitrary HTML (e.g., an img onerror payload), which bypasses the allow-list check and executes in the browser of any user — including administrators — who previews or views a page rendering the [sendpulse-form] shortcode.
AI Analysis
Technical Summary
CVE-2026-13362 is a stored cross-site scripting vulnerability in the SendPulse Email Marketing Newsletter plugin for WordPress, affecting all versions up to and including 2.2.5. The flaw exists due to improper neutralization of input during web page generation, specifically via the _sp_form_code post meta. Authenticated attackers with contributor-level privileges or higher can inject arbitrary HTML and script payloads by creating a sendpulse_form post containing a benign SendPulse loader script tag combined with malicious HTML. This bypasses allow-list checks and results in script execution in the browsers of any users who preview or view pages rendering the [sendpulse-form] shortcode, including administrators.
Potential Impact
Successful exploitation allows attackers with contributor-level access to execute arbitrary scripts in the browsers of users viewing affected pages. This can lead to information disclosure and limited integrity impact within the context of the affected WordPress site. The vulnerability does not allow unauthenticated exploitation and does not impact availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and avoid previewing or viewing pages containing the [sendpulse-form] shortcode created by untrusted contributors.
CVE-2026-13362: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in sendpulse SendPulse Email Marketing Newsletter
Description
The SendPulse Email Marketing Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via _sp_form_code Post Meta in all versions up to, and including, 2.2.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the attacker to create a sendpulse_form post containing a benign SendPulse loader script tag alongside arbitrary HTML (e.g., an img onerror payload), which bypasses the allow-list check and executes in the browser of any user — including administrators — who previews or views a page rendering the [sendpulse-form] shortcode.
CVSS v3.1
Score 6.4medium
Affected software
sendpulse
SendPulse Email Marketing Newsletter
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-13362 is a stored cross-site scripting vulnerability in the SendPulse Email Marketing Newsletter plugin for WordPress, affecting all versions up to and including 2.2.5. The flaw exists due to improper neutralization of input during web page generation, specifically via the _sp_form_code post meta. Authenticated attackers with contributor-level privileges or higher can inject arbitrary HTML and script payloads by creating a sendpulse_form post containing a benign SendPulse loader script tag combined with malicious HTML. This bypasses allow-list checks and results in script execution in the browsers of any users who preview or view pages rendering the [sendpulse-form] shortcode, including administrators.
Potential Impact
Successful exploitation allows attackers with contributor-level access to execute arbitrary scripts in the browsers of users viewing affected pages. This can lead to information disclosure and limited integrity impact within the context of the affected WordPress site. The vulnerability does not allow unauthenticated exploitation and does not impact availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and avoid previewing or viewing pages containing the [sendpulse-form] shortcode created by untrusted contributors.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-06-25T18:50:41.284Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6d5b2bbf32cb7a34f84e89
Added to database: 08/01/2026, 02:34:19 UTC
Last enriched: 08/08/2026, 14:26:36 UTC
Last updated: 09/15/2026, 22:01:31 UTC
Views: 92
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