CVE-2026-3090: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
The Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘event_type’ parameter in all versions up to, and including, 3.8.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability is only exploitable when the Post SMTP Pro plugin is also installed and its Reporting and Tracking extension is enabled.
AI Analysis
Technical Summary
The Post SMTP – Complete Email Deliverability and SMTP Solution plugin for WordPress suffers from a stored XSS vulnerability (CWE-79) via the 'event_type' parameter. Insufficient input sanitization and output escaping allow attackers to inject arbitrary web scripts that execute when a user views the affected page. Exploitation requires the presence of the Post SMTP Pro plugin with the Reporting and Tracking extension enabled. The vulnerability affects all versions up to and including 3.8.0. No patch or remediation details are currently provided.
Potential Impact
Successful exploitation can lead to execution of arbitrary scripts in the context of the affected site, potentially compromising user sessions, redirecting users, or performing actions on behalf of users without their consent. The vulnerability does not require authentication and has a network attack vector with low attack complexity. Confidentiality and integrity impacts are low, with no availability impact reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling the Post SMTP Pro plugin's Reporting and Tracking extension to mitigate exposure. Monitor official vendor channels for updates and apply patches promptly once released.
CVE-2026-3090: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in saadiqbal Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
Description
The Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘event_type’ parameter in all versions up to, and including, 3.8.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability is only exploitable when the Post SMTP Pro plugin is also installed and its Reporting and Tracking extension is enabled.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Post SMTP – Complete Email Deliverability and SMTP Solution plugin for WordPress suffers from a stored XSS vulnerability (CWE-79) via the 'event_type' parameter. Insufficient input sanitization and output escaping allow attackers to inject arbitrary web scripts that execute when a user views the affected page. Exploitation requires the presence of the Post SMTP Pro plugin with the Reporting and Tracking extension enabled. The vulnerability affects all versions up to and including 3.8.0. No patch or remediation details are currently provided.
Potential Impact
Successful exploitation can lead to execution of arbitrary scripts in the context of the affected site, potentially compromising user sessions, redirecting users, or performing actions on behalf of users without their consent. The vulnerability does not require authentication and has a network attack vector with low attack complexity. Confidentiality and integrity impacts are low, with no availability impact reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling the Post SMTP Pro plugin's Reporting and Tracking extension to mitigate exposure. Monitor official vendor channels for updates and apply patches promptly once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-02-24T01:24:00.305Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69bac830771bdb1749ab0209
Added to database: 3/18/2026, 3:43:44 PM
Last enriched: 4/9/2026, 6:45:54 PM
Last updated: 5/1/2026, 3:23:40 PM
Views: 68
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