CVE-2026-81807Simple Ajax Chat < 20260827 - Unauthenticated Stored XSS via Chat Message Linkification
Updated under an hour ago ()
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It affects Unknown Simple Ajax Chat. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 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)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown Simple Ajax Chat unknown:simple_ajax_chat (from the name) | before 20260827 | CNA record |
References
- https://wpscan.com/vulnerability/7aceefd5-aa09-4828-b375-6a62997fa0c2/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.