CVE-2026-2471
WP Mail Logging <= 1.15.0 - Unauthenticated PHP Object Injection via Email Log Message Field
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
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.
Timeline
ID reserved
By Wordfence
- 15 days later
· 15 days later
Published
- 39 days later
· 39 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.46% · top 60% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
- affected ≤ 1.15.0
References (5)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/10e4c52d-c82f-4393-9a56-5714b3a108d1?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/lib/vendor/brandonwamboldt/wp-orm/src/BaseModel.php#L39 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/src/WPML_Plugin.php#L553 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.15.0/src/Renderer/WPML_MailRenderer_AJAX_Handler.php#L100 (opens in a new tab)
- 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= (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-2471)Record last updated .