WordPress security by component
Post SMTP
Plugin description
Post SMTP is a WordPress component with 27 published CVE records in this archive. The latest tracked vulnerability was published Jun 15, 2026; the highest CVE/CNA score is 9.8.
Plugin slug:
post-smtpLatest vulnerability
CVE-2026-48838: Post SMTP: Cross-site scripting
Post SMTP is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is n/a through 3.6.2.
| Safe version |
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|---|---|---|---|
| Jun 15, 2026 |
CVE-2026-48838
Post SMTP: Cross-site scripting
Post SMTP is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is n/a through 3.6.2.
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3.6.3 |
CVE7.1
NVDPending
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| Mar 18, 2026 |
CVE-2026-3090
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App: Cross-site scripting
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
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See mitigation notes |
CVE7.2
NVDPending
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| Mar 18, 2026 |
CVE-2026-2559
Post SMTP: A security weakness
Post SMTP is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
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See mitigation notes |
CVE5.3
NVDPending
|
| Dec 09, 2025 |
CVE-2025-67563
Post SMTP: A security weakness
Post SMTP is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.
|
See mitigation notes |
CVE5.3
NVDPending
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| Dec 03, 2025 |
CVE-2025-12887
Post SMTP: A security weakness
Post SMTP is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
|
See mitigation notes |
CVE5.4
NVDPending
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| Nov 01, 2025 |
CVE-2025-11833
Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App: Privilege escalation or authentication bypass
Post SMTP – Complete SMTP Solution with Logs, Alerts, Backup SMTP & Mobile App is affected by privilege escalation or authentication bypass. The vulnerable path is reachable without authentication. A successful request can grant permissions or access that the caller should not possess.
|
See mitigation notes |
CVE9.8
NVDPending
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| Sep 03, 2025 |
CVE-2025-9219
Post Smtp: A security weakness
Post Smtp is affected by a security weakness. Exploitation requires at least subscriber-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.
|
See mitigation notes |
CVE4.3
NVDPending
|
| Aug 07, 2025 |
CVE-2025-24000
Post SMTP: Privilege escalation or authentication bypass
Post SMTP is affected by privilege escalation or authentication bypass. Exposure depends on how the affected operation is made reachable by the site. A successful request can grant permissions or access that the caller should not possess.
|
See mitigation notes |
CVE8.8
NVDPending
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| Mar 08, 2025 |
CVE-2024-13844
Post SMTP: SQL injection
Post SMTP is affected by SQL injection. Exploitation requires at least administrator-level access. A successful request can alter database queries and expose or modify WordPress data.
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See mitigation notes |
CVE4.9
NVD4.9
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| Feb 18, 2025 |
CVE-2025-0521
Post SMTP: Cross-site scripting
Post SMTP is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
|
See mitigation notes |
CVE7.2
NVD6.1
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| Jan 13, 2025 |
CVE-2025-22800
Post SMTP: A security weakness
Post SMTP is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.
|
See mitigation notes |
CVE4.3
NVD8.8
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| Nov 18, 2024 |
CVE-2024-52436
Post SMTP: SQL injection
Post SMTP is affected by SQL injection. Exposure depends on how the affected operation is made reachable by the site. A successful request can alter database queries and expose or modify WordPress data.
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See mitigation notes |
CVE7.6
NVD7.2
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| Jun 11, 2024 |
CVE-2023-52233
Post SMTP Mailer/Email Log: A security weakness
Post SMTP Mailer/Email Log is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.
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See mitigation notes |
CVE8.6
NVD9.8
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| May 30, 2024 |
CVE-2024-5207
#1 WordPress SMTP Plugin with Advanced Email Logging and Delivery Failure Notifications: SQL injection
#1 WordPress SMTP Plugin with Advanced Email Logging and Delivery Failure Notifications is affected by SQL injection. Exploitation requires an authenticated WordPress account. A successful request can alter database queries and expose or modify WordPress data.
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See mitigation notes |
CVE7.2
NVDPending
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| Mar 19, 2024 |
CVE-2024-29128
POST SMTP: Cross-site scripting
POST SMTP is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
|
See mitigation notes |
CVE7.1
NVD6.1
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| Jan 16, 2024 |
CVE-2023-3178
POST SMTP Mailer: Cross-site request forgery
POST SMTP Mailer is affected by cross-site request forgery. Exposure depends on how the affected operation is made reachable by the site. Exploitation relies on a signed-in privileged user submitting an attacker-controlled request.
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See mitigation notes |
CVE4.3
NVD4.3
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| Jan 15, 2024 |
CVE-2023-6620
POST SMTP Mailer: SQL injection
POST SMTP Mailer is affected by SQL injection. Exposure depends on how the affected operation is made reachable by the site. A successful request can alter database queries and expose or modify WordPress data.
|
See mitigation notes |
CVE7.2
NVD7.2
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| Jan 11, 2024 |
CVE-2023-6875
POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for: A security weakness
POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation.
|
See mitigation notes |
CVE9.8
NVD9.8
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| Jan 03, 2024 |
CVE-2023-6621
POST SMTP: Cross-site scripting
POST SMTP is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
|
See mitigation notes |
CVE6.1
NVD6.1
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| Jan 03, 2024 |
CVE-2023-7027
POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for: Cross-site scripting
POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
|
See mitigation notes |
CVE7.2
NVD5.4
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| Jan 03, 2024 |
CVE-2023-6629
POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for: Cross-site scripting
POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
|
See mitigation notes |
CVE6.1
NVD6.1
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| Nov 27, 2023 |
CVE-2023-5958
POST SMTP Mailer: Cross-site scripting
POST SMTP Mailer is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
|
See mitigation notes |
CVE6.1
NVD6.1
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| Jul 17, 2023 |
CVE-2023-3179
POST SMTP Mailer: Cross-site request forgery
POST SMTP Mailer is affected by cross-site request forgery. Exposure depends on how the affected operation is made reachable by the site. Exploitation relies on a signed-in privileged user submitting an attacker-controlled request.
|
See mitigation notes |
CVE8.8
NVD8.8
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| Jul 12, 2023 |
CVE-2021-4422
POST SMTP Mailer: Cross-site request forgery
POST SMTP Mailer is affected by cross-site request forgery. The vulnerable path is reachable without authentication. Exploitation relies on a signed-in privileged user submitting an attacker-controlled request.
|
See mitigation notes |
CVE4.3
NVD4.3
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| Jul 12, 2023 |
CVE-2023-3082
Post SMTP: Cross-site scripting
Post SMTP is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
|
See mitigation notes |
CVE7.2
NVD6.1
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| Sep 26, 2022 |
CVE-2022-2352
Post SMTP Mailer/Email Log: Server-side request forgery
Post SMTP Mailer/Email Log is affected by server-side request forgery. Exposure depends on how the affected operation is made reachable by the site. The vulnerable server can be induced to make attacker-selected network requests.
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See mitigation notes |
CVE7.2
NVD7.2
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| Sep 16, 2022 |
CVE-2022-2351
Post SMTP Mailer/Email Log: Cross-site scripting
Post SMTP Mailer/Email Log is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
|
See mitigation notes |
CVE4.8
NVD4.8
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