CVE-2026-57416 SiteGround CVE debrief

Who should care

Administrators and users of the SiteGround Email Marketing plugin, especially those using version 1.7.5 or earlier, should be aware of this vulnerability and take immediate action to mitigate the risk. This includes updating the plugin to the latest version, implementing Content Security Policy (CSP), and monitoring for suspicious activity.

Technical summary

The SiteGround Email Marketing plugin is vulnerable to Stored Cross-Site Scripting (XSS). The vulnerability exists due to improper neutralization of user input during web page generation. An attacker could exploit this by injecting malicious scripts, which would be stored and executed by the application. This could lead to unauthorized actions or data manipulation. The CVE record was published on 2026-07-13T10:16:35.473Z and has not been modified since then. The NVD entry is currently 7.1 HIGH. Limited details are available about the specific vulnerability and affected versions.

Defensive priority

High priority should be given to updating the SiteGround Email Marketing plugin to a version that addresses this vulnerability.

Recommended defensive actions

• Update the SiteGround Email Marketing plugin to the latest version.
• Implement Content Security Policy (CSP) to mitigate XSS attacks.
• Monitor for suspicious activity and implement web application firewall (WAF) rules.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record was published on 2026-07-13T10:16:35.473Z and has not been modified since then. The NVD entry is currently 7.1 HIGH. Limited details are available about the specific vulnerability and affected versions. The vulnerability allows an attacker to inject malicious scripts into web pages, potentially leading to unauthorized actions or data theft.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.