CVE-2026-88793YouTube Embed 10.0 - 10.3 - Unauthenticated Stored XSS via youram_server
Updated under an hour ago ()
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It affects Unknown YouTube Embed. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The YouTube Embed WordPress plugin from 10.0 to 10.3 does not perform any authorisation check on one of its AJAX actions, relying only on a nonce it prints on every front-end page, and does not escape the stored data before rendering it, allowing unauthenticated attackers to store arbitrary web scripts which will execute in the session of any user viewing the affected content, including an administrator.
- CVSS
- 8.8 HIGH (v3.1, CNA)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 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown YouTube Embed unknown:youtube_embed (from the name) | from 10.0 through 10.3 | CNA record |
References
- https://wpscan.com/vulnerability/7f695b0c-5dbc-4f3e-9b3f-c3558b1729ad/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.