---
id: "CVE-2026-123676"
page: "https://infrastack.ai/live/CVE-2026-123676"
kind: "vulnerability"
aliases: ["CVE-2026-123676"]
title: "Novel web app: flawed authorization lets remote users read restricted chapter content"
severity: "medium"
cvss: 5.5
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["java", "novel", "other", "self-hosted"]
not_affected_if: []
published_at: "2026-11-06T16:17:54+00:00"
first_seen_at: "2026-11-06T16:42:41+00:00"
updated_at: "2026-11-06T16:44:48+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123676", "first_seen_at": "2026-11-06T16:42:41+00:00"}]
exploit_sources: []
---

# Novel web app: flawed authorization lets remote users read restricted chapter content

Link for people: https://infrastack.ai/live/CVE-2026-123676 (this .md is for agents)

The xxyopen novel application up to version 3.5.0 fails to check authorization properly in BookServiceImpl.getBookContentAbout when handling the chapterId argument. A remote attacker can manipulate that argument to access book chapter content they should not be able to read.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check whether the deployed novel version is `3.5.0` or earlier, and whether commit `966c4bdde3521dc0a165d15a2acff66ee33eaaa7` is applied to BookServiceImpl.java

## Fix

- Apply the patch named `966c4bdde3521dc0a165d15a2acff66ee33eaaa7` from the project repository

## Timeline

- 2026-11-06T16:42:41+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123676

## Documents

- [fix] Patch: github.com https://github.com/201206030/novel/commit/966c4bdde3521dc0a165d15a2acff66ee33eaaa7

## From the sources

A vulnerability has been found in xxyopen/201206030 novel up to 3.5.0. This impacts the function BookServiceImpl.getBookContentAbout of the file src/main/java/io/github/xxyopen/novel/service/impl/BookServiceImpl.java of the component Book Content Service. Such manipulation of the argument chapterId leads to improper authorization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 966c4bdde3521dc0a165d15a2acff66ee33eaaa7. Applying a patch is advised to resolve this issue.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_