CVE-2025-65858

LOW 1 PoC
INFO Priority: 0.01 BB Relevance: 52/100
Published: 2025-12-02 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Network Low Complexity

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: Required
S: Unchanged
C: Low
I: Low
A: None

Description

A Stored Cross-Site Scripting (XSS) vulnerability in Calibre-Web v0.6.25 allows attackers to inject malicious JavaScript into the 'username' field during user creation. The payload is stored unsanitized and later executed when the /ajax/listusers endpoint is accessed.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
janeczku calibre-web 0.6.25

References & Advisories (1)

Bug Bounty Relevance

52 / 100
✓ Network accessible
✓ Low complexity
✓ PoC available (1)

CVSS Score

3.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N

EPSS — Exploitation Probability

0.22%
Raw Score 0.002210
Percentile 12.8%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00221
2026-11-13
0.00221
2026-11-12
0.00221
2026-11-10
0.00221
2026-11-09
0.00221
2026-11-08
0.00221
2026-11-07
0.00221
2026-11-06
0.00221
2026-11-05
0.00221
2026-11-04
0.00221

Intelligence Sources

nvd ref →