CVE-2026-81807 — HIGH (8.8)

Vulnerability Description

The Simple Ajax Chat WordPress plugin before 20260827 does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and run scripts in the browser of anyone viewing the chat, including administrators.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-79

References

https://wpscan.com/vulnerability/7aceefd5-aa09-4828-b375-6a62997fa0c2/

FAQ

What is CVE-2026-81807?

CVE-2026-81807 is a vulnerability with a CVSS score of 8.8 (HIGH). The Simple Ajax Chat WordPress plugin before 20260827 does not escape chat message content before rendering it, allowing unauthenticated users to inject arbitrary HTML attributes into the page and ru...

How severe is CVE-2026-81807?

CVE-2026-81807 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-81807?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.