Is CVE-2026-12170 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-12170 being exploited in the wild.

How severe is CVE-2026-12170?

Medium severity, with a CVSS score of 6.4, published 9 July 2026.

Which products and versions are affected?

Acyba AcyMailing Up to and including 10.10.2.

Is there a fix for CVE-2026-12170?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-12170 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-12170?

Check whether you run Acyba AcyMailing at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-12170: Acyba AcyMailing Stored XSS in alignment attribute

CVE-2026-12170 · Severity: medium · CVSS 6.4 · Published 2026-07-09

AcyMailing, a popular newsletter and marketing automation plugin for WordPress, contains a security flaw that allows users with contributor-level access or higher to inject malicious scripts into website pages. These scripts will automatically run in the browser of any visitor who views the affected page. This could lead to unauthorized actions being performed on behalf of site administrators or the theft of sensitive session information.

Technologies: Acyba AcyMailing. Vendors: Acyba.

Quick answers

Is CVE-2026-12170 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-12170 being exploited in the wild.
How severe is CVE-2026-12170?: Medium severity, with a CVSS score of 6.4, published 9 July 2026.
Which products and versions are affected?: Acyba AcyMailing Up to and including 10.10.2.
Is there a fix for CVE-2026-12170?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-12170 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-12170?: Check whether you run Acyba AcyMailing at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The AcyMailing plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping on the 'alignment' attribute. This vulnerability exists in all versions up to and including 10.10.2. An authenticated attacker with contributor-level permissions or higher can exploit this by injecting malicious JavaScript into a page. Because the input is stored on the server and later rendered without proper neutralization, the script executes in the context of any user (including administrators) who visits the compromised page. This can lead to session hijacking or unauthorized administrative actions.

Affected products

acyba AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress Up to and including 10.10.2

Timeline

2026-07-09: disclosed: CVE published to the NVD dataset

References

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