TI-2026-60207 Aliases CVE-2026-88793 GHSA-mwfg-r67v-rvfv

YouTube Embed 10.0 - 10.3 - Unauthenticated Stored XSS via youram_server

MEDIUM 41CWE-79Published 2026-09-13 · Updated 2026-09-14

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00505 43rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	YouTube Embed	10.0 – 10.3	—	No fix listed	CNA

YouTube Embed VendorUnknown Affected 10.0 – 10.3 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-88793
2026-10-03 Alias added: GHSA-mwfg-r67v-rvfv

References

Exploit 1

https://wpscan.com/vulnerability/7f695b0c-5dbc-4f3e-9b3f-c3558b1729ad/

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences