CVE-2026-13156
Last modified
CVE-2026-13156 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The MailerSend WordPress plugin before 1.0.8 does not perform a nonce check on its configuration-delete action (it verifies the manage_options capability but ignores the nonce), so an attacker can trick a logged-in administrator into visiting a crafted page that wipes the MailerSend WordPress plugin before 1.0.8's SMTP configuration and deactivates the MailerSend WordPress plugin before 1.0.8, breaking the site's email delivery.. EPSS estimates a 0.10% chance of exploitation in the next 30 days.
Description
The MailerSend WordPress plugin before 1.0.8 does not perform a nonce check on its configuration-delete action (it verifies the manage_options capability but ignores the nonce), so an attacker can trick a logged-in administrator into visiting a crafted page that wipes the MailerSend WordPress plugin before 1.0.8's SMTP configuration and deactivates the MailerSend WordPress plugin before 1.0.8, breaking the site's email delivery.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Unknown | MailerSend | < 1.0.8 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-13156?
How severe is CVE-2026-13156?
How do I fix CVE-2026-13156?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-1315By sending crafted files to the firmware update endpoint of …7.5
- CVE-2026-13150Server-Side Request Forgery (SSRF) (CWE-918) in the PDF gene…6.9
- CVE-2026-13151Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2026-13152The Custom Fields Account Registration For Woocommerce WordP…8.1
- CVE-2026-13153The Gutenberg Essential Blocks WordPress plugin before 6.4.…7.5
- CVE-2026-13154The Gutenberg Essential Blocks WordPress plugin before 6.4.…7.5
- CVE-2026-13157The Demo Import WordPress plugin through 1.1.3 does not val…7.2
- CVE-2026-13158The Everest Toolkit WordPress plugin through 1.2.3 does not …7.2
- CVE-2026-13159The Real Estate Papi WordPress theme through 1.0.5 does not …4.3
- CVE-2026-1316The Customer Reviews for WooCommerce plugin for WordPress is…7.2
- CVE-2026-13161The TrueBooker – Appointment Booking and Scheduler System pl…7.5
- CVE-2026-13163Open redirect vulnerability (CWE-601) in the _safe_redirect …5.3
Are you affected by CVE-2026-13156?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST