Dashboard / CVE-2026-126814

CVE-2026-126814

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 50/100
Published: 2026-11-11 Modified: 2026-11-13 First seen: 2026-11-11 Status: active

Attack Surface

Network Low Complexity

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Active
S: X
AT: None
VC: None
VI: Low
VA: None

Description

blueprintUE Self-Hosted Edition before 4.3.6 contains an iframe injection vulnerability that allows authenticated users to embed arbitrary third-party content by abusing the PeerTube video URL matcher in BlueprintService::findVideoProvider(). Attackers can set a blueprint video URL on an attacker-controlled host, which site.js loads in an unsandboxed iframe after consent, framing fake login forms or malware downloads.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
blueprintue blueprintue-self-hosted-edition 1.0.0 < 4.3.6
blueprintue blueprintue-self-hosted-edition 1.0.0 < 4.3.6

References & Advisories (6)

Bug Bounty Relevance

50 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

4.8 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.26%
Raw Score 0.002570
Percentile 17.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00257
2026-11-13
0.00257
2026-11-12
0.00257

Intelligence Sources

mitre ref →
nvd ref →

External Links