Dashboard / CVE-2026-121627

CVE-2026-121627

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 61/100
Published: 2026-11-03 Modified: 2026-11-12 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

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

Description

buku 5.0 through 5.1.1 contains a stored cross-site scripting vulnerability in the bukuserver bookmark list that allows attackers to execute script via an unescaped bookmark URL in BookmarkModelView._list_entry(). Attackers can submit a URL containing a double quote and event handler through the unauthenticated /api/bookmarks endpoint to issue same-origin API requests with viewers' credentials.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
jarun buku 5.0
jarun buku 5.0

References & Advisories (4)

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

5.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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

0.19%
Raw Score 0.001940
Percentile 9.1%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00194
2026-11-13
0.00194
2026-11-12
0.00194
2026-11-10
0.00194
2026-11-09
0.00194
2026-11-08
0.00194
2026-11-07
0.00194
2026-11-06
0.00194
2026-11-05
0.00194
2026-11-04
0.00194

Intelligence Sources

mitre ref →
nvd ref →

External Links