CVE-2026-2471WP Mail Logging <= 1.15.0 - Unauthenticated PHP Object Injection via Email Log Message Field
Updated under an hour ago ()
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It affects smub WP Mail Logging. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The WP Mail Logging plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.15.0 via deserialization of untrusted input from the email log message field. This is due to the `BaseModel` class constructor calling `maybe_unserialize()` on all properties retrieved from the database without validation. This makes it possible for unauthenticated attackers to inject a PHP Object by submitting a double-serialized payload through any public-facing form that sends email (e.g., Contact Form 7). When the email is logged and subsequently viewed by an administrator, the malicious payload is deserialized into an arbitrary PHP object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Apr 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
smub WP Mail Logging smub:wp_mail_logging (from the name) | through 1.15.0 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/10e4c52d-c82f-4393-9a56-5714b3a108d1?source=cve
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/lib/vendor/brandonwamboldt/wp-orm/src/BaseModel.php#L39
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/src/WPML_Plugin.php#L553
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/src/Renderer/WPML_MailRenderer_AJAX_Handler.php#L100
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3464813%40wp-mail-logging&old=3358334%40wp-mail-logging&sfp_email=&sfph_mail=
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.