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CVE-2026-87764

HIGH 8.8 CVSS 3.1
Published
October 11, 2026
Last modified
October 13, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

The BuddyPress Instant Chat WordPress plugin through 1.6 does not check that the sender of a chat message belongs to the conversation it is being added to, nor does it escape message content before outputting it back, allowing unauthenticated users to store arbitrary web scripts that will execute in the session of any member who later views that conversation.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown BuddyPress Instant Chat — Up to and including 1.6

References

  • wpscan.com https://wpscan.com/vulnerability/4c8836ae-5a1f-48ca-96fd-50a85e014cf6/
  • nvd.nist.gov Official NVD record