EIP-2026-104191

PRE-CVE

Calibre-web 0.6.21 - Stored XSS

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-104191. PoCs published by Catalin Iovita_ Alexandru Postolache.

AI-analyzed exploit summary This is a writeup describing a stored XSS vulnerability in Calibre-web 0.6.21. The exploit involves injecting a malicious script into the 'Comments' field of a book, which executes when viewed in the Book Details section.

Description

Calibre-web 0.6.21 - Stored XSS

Exploits (1)

exploitdb WRITEUP
by Catalin Iovita_ Alexandru Postolache · textwebappsmultiple
https://www.exploit-db.com/exploits/52067

This is a writeup describing a stored XSS vulnerability in Calibre-web 0.6.21. The exploit involves injecting a malicious script into the 'Comments' field of a book, which executes when viewed in the Book Details section.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Calibre-web 0.6.21
Auth required
Prerequisites: Access to a user account with permissions to upload/edit books
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026