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CVE-2026-88793

YouTube Embed 10.0 - 10.3 - Unauthenticated Stored XSS via youram_server

HIGH
8.8
CVSS Score
Published: September 13, 2026 at 08:06 PM UTC
Updated: September 14, 2026 at 09:24 PM UTC
1 product affected across 1 vendorYouTube Embed

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Severity
HIGH8.8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

YouTube Embed· YouTube Embed Projectwordpress-plugin
60%
10.0 ≤ v ≤ 10.310.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/7f695b0c-5dbc-4f3e-9b3f-c3558b1729ad/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHWPScan
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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