POST SMTP Mailer <= 2.8.6 - Reflected Cross-Site Scripting via msg
Published Jan 3, 2024
6.1
MEDIUMCVSS 3.1
EPSS 0.44%
Description
The POST SMTP Mailer – Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘msg’ parameter in all versions up to, and including, 2.8.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. CVE-2023-6621 appears to be a duplicate of this issue. CVE-2024-29128 appears to be a duplicate of this issue.
Affected products
-
- Version 0StatusaffectedConstraints<=2.8.6
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Saadiqbal | n/a | unaffected |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jan 8, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.44% (0.00442) | 36.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.44% (0.00442) | 34.98th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.82% (0.00818) | 72.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00100) | 42.95th | v3 (v2023.03.01) |
| Jan 10, 2024 | 0.09% (0.00092) | 38.94th | v3 (v2023.03.01) |
References (3)
- https://plugins.trac.wordpress.org/browser/post-smtp/trunk/Postman/Wizard/NewWizard.php#L396 Issue Tracking
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3012318%40post-smtp%2Ftrunk&old=3006604%40post-smtp%2Ftrunk&sfp_email=&sfph_mail=#file4 Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7681f984-d488-4da7-afe1-988e5ad012f2?source=cve Third Party Advisory
Change history (0)
No recorded changes yet.