Is CVE-2026-57741 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-57741 being exploited in the wild.

How severe is CVE-2026-57741?

High severity, with a CVSS score of 7.1, published 13 July 2026.

Which products and versions are affected?

AcyMailing Newsletter Team AcyMailing SMTP Newsletter through 10.11.0.

Is there a fix for CVE-2026-57741?

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-2026-57741 attacked?

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

Am I affected by CVE-2026-57741?

Check whether anything you run is named in the advisory. 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-2026-57741: AcyMailing SMTP Newsletter Stored XSS

CVE-2026-57741 · Severity: high · CVSS 7.1 · Published 2026-07-13

AcyMailing SMTP Newsletter, a popular WordPress plugin used for managing email marketing and newsletters, contains a security flaw that allows for stored cross-site scripting (XSS). An attacker could use this vulnerability to inject malicious scripts into the website, which would then execute in the browsers of other users or administrators. This could lead to unauthorized actions, theft of session cookies, or the defacement of the site.

Quick answers

Is CVE-2026-57741 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-57741 being exploited in the wild.
How severe is CVE-2026-57741?: High severity, with a CVSS score of 7.1, published 13 July 2026.
Which products and versions are affected?: AcyMailing Newsletter Team AcyMailing SMTP Newsletter through 10.11.0.
Is there a fix for CVE-2026-57741?: 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-2026-57741 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-57741?: Check whether anything you run is named in the advisory. 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

A Stored Cross-Site Scripting (XSS) vulnerability exists in the AcyMailing SMTP Newsletter plugin for WordPress (versions up to and including 10.11.0). The flaw stems from improper neutralization of user-supplied input during web page generation, allowing an attacker to inject persistent malicious scripts. The attack vector is network-based and requires a user to interact with the affected page (UI:R). Successful exploitation allows the attacker to execute arbitrary JavaScript in the context of the victim's browser, potentially leading to session hijacking or administrative account takeover. The issue is addressed in version 10.11.1.

Affected products

AcyMailing Newsletter Team AcyMailing SMTP Newsletter through 10.11.0

Timeline

2026-07-13: disclosed
2026-07-13: advisory

References

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