Dashboard / CVE-2026-121544

CVE-2026-121544

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 59/100
Published: 2026-11-03 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

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

Description

Koodo Reader through 2.4.6 contains a path traversal vulnerability in the self-hosted HTTP server's OPDS handlers that allows authenticated attackers to read files outside the upload directory. Attackers can upload a crafted books.db with a cover value containing ../ sequences, then request /opds/cover/{key} to read files accessible to the server process.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
koodo-reader koodo-reader 0
koodo-reader koodo-reader 0

References & Advisories (7)

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/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

0.64%
Raw Score 0.006370
Percentile 51.1%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00637
2026-11-13
0.00637
2026-11-12
0.00637
2026-11-10
0.00637
2026-11-09
0.00637
2026-11-08
0.00637
2026-11-07
0.00637
2026-11-06
0.00637
2026-11-05
0.00637
2026-11-04
0.00637

Intelligence Sources

mitre ref →
nvd ref →

External Links