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
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
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- CVE-2026-13151Rejected reason: This CVE ID has been rejected or withdrawn …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-2026-1316The 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
- CVE-2026-13164Missing Authentication for Critical Function (CWE-306) in th…8.8
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