CVE-2026-87764BuddyPress Instant Chat <= 1.6 - Unauthenticated Stored XSS via Chat Message
Updated under an hour ago ()
Does this affect you?
It affects Unknown BuddyPress Instant Chat. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.28%, higher than 19% of scored CVEs.
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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.
- CVSS
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.28% (percentile 19)
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Oct 11, 2026
- First seen by InfoSec Signals
- Oct 11, 2026
Affected products
Unknown BuddyPress Instant Chat unknown:buddypress_instant_chat (from the name) | through 1.6 | CNA record |
References
- https://wpscan.com/vulnerability/4c8836ae-5a1f-48ca-96fd-50a85e014cf6/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.