CVE-2026-102562
7.2, highAcyba AcyMailing - An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress Cross-Site Scripting Vulnerability
- CVSS
- 7.2, high high CVSS v3.1
- EPSS, next 30 days
- 0.2% higher than 14.8% of scored CVEs
- Exploitation
- No public evidence
- Published
- 13 Oct 20264 days ago
Description
The AcyMailing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the customField[] parameter of the public frontusers::subscribe endpoint in versions up to, and including, 11.1.0. This is due to insufficient input sanitization and output escaping in the acym_cleanVar() sanitizer, whose HTML-tag stripper only matches complete tags (requiring a closing '>'), together with SubscriberInsertion::replaceUserInformation() and the archive view template, which substitute the stored subscriber field value into the mail body and emit it without HTML encoding. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the online-archive URL for the poisoned subscriber, including administrators who click the plugin-generated link in the Subscribers → History screen.
Details
- Vendor
- Acyba
- Product
- AcyMailing - An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
- Weakness
- CWE-79 (opens in a new tab)
- Status
- Deferred
- Updated
- 13 Oct 2026
- Assigner
- security@wordfence.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
References 8
Advisories 1
Other references 7
- plugins.trac.wordpress.org /browser/acymailing/tags/11.1.0/back/Classes/FieldClass.php#L292 (opens in a new tab)
- plugins.trac.wordpress.org /browser/acymailing/tags/11.1.0/back/Classes/UserClass.php#L1187 (opens in a new tab)
- plugins.trac.wordpress.org /browser/acymailing/tags/11.1.0/back/dynamics/subscriber/SubscriberInsertion.php#L159 (opens in a new tab)
- plugins.trac.wordpress.org /browser/acymailing/tags/11.1.0/front/FrontControllers/FrontusersController.php#L69 (opens in a new tab)
- plugins.trac.wordpress.org /browser/acymailing/tags/11.1.0/front/FrontViews/Archive/tmpl/view.php#L17 (opens in a new tab)
- plugins.trac.wordpress.org /changeset?reponame=&old=3729031%40acymailing&new=3729031%40acymailing (opens in a new tab)
- wordfence.com /threat-intel/vulnerabilities/id/eb8f03fb-d1af-4727-87d7-58dbe4013d8a?source=cve (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Beyond this page
Is CVE-2026-102562 in your network?
This page tells you how dangerous CVE-2026-102562 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
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EXYS7600 OCELOT
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Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 16 Oct 2026, not the live upstream state.