CVE-2026-63105 Razinsoft CVE debrief

Who should care

Defenders responsible for ReadyEcommerce installations, especially those with customer messaging systems, should assess exposure to this vulnerability and prioritize verification of the version in use.

Why it matters

CVE-2026-63105 is a stored XSS vulnerability in ReadyEcommerce that allows authenticated customers to inject malicious HTML payloads through chat and support ticket messaging systems, enabling session cookie theft and account takeover. Defenders should prioritize verifying exposure and assessing the version of ReadyEcommerce in use.

• Session cookie theft and account takeover are possible consequences of successful exploitation.
• Defenders need to verify the version of ReadyEcommerce in use and assess exposure.
• Remediation priority follows from verifying exposure and upgrading to a fixed version if necessary.
• The exact vectors for exploitation and affected scope require verification from official sources.

Technical summary

The vulnerability exists in the chat and support ticket messaging systems of ReadyEcommerce due to unsanitized rendering via the v-html directive in Messages.vue, RightChatSidebar.vue, SupportTicketMessages.vue, and SupportTicketDetails.vue. This allows authenticated customers to inject malicious HTML payloads, which can execute arbitrary JavaScript in the browser of shop owners or administrators who view the message.

Defensive priority

Defenders should prioritize verifying exposure of ReadyEcommerce installations, especially those with customer messaging systems, and assess the version of ReadyEcommerce in use.

Recommended defensive actions

• Verify the version of ReadyEcommerce in use and assess exposure to the vulnerability
• Implement input validation and output encoding for user-supplied data in messaging systems
• Monitor for suspicious activity in shop owner or administrator accounts
• Consider upgrading to ReadyEcommerce version 4.5.2 or later if available
• Review compensating controls for exposed systems while remediation is scheduled and verified
• 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 and NVD entry provide details on the vulnerability, including its description and CVSS score. However, the exact versions of ReadyEcommerce affected and the specific vectors for exploitation require verification from the official sources.

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.