What is CVE-2026-123677?

CVE-2026-123677 is a medium-severity vulnerability in 201206030 Novel, classified under Improper Authorization. CVSS score: 4.3/10. Published 2026-11-06.

How severe is CVE-2026-123677?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in 201206030 Novel

CVE-2026-123677

A vulnerability was found in xxyopen/201206030 novel up to 3.5.0. Affected is the function getBookChapter of the file src/main/java/io/github/xxyopen/novel/service/impl/BookServiceImpl.java of the component Book Chapter Read Handler. Performing a manipulation of the argument chapterId results in authorization bypass. The attack may be initiated remotely. The exploit has been made public and could be used. The patch is named b8134e774820e0971fa9d8074405b49a01c99bdc. It is suggested to install a patch to address this issue.

Published 2026-11-06 · last modified 2026-11-06.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

201206030 Novel — versions 3.0, 3.1, 3.2
Xxyopen Novel — versions 3.0, 3.1, 3.2

Weakness classification (CWE)

References

github.com/201206030/novel/commit/b8134e774820e0971fa9d8074405b49a01c99bdc (patch)
github.com/201206030/novel/pull/51 (issue-tracking, exploit, patch)
vuldb.com/cve/CVE-2026-123677 (third-party-advisory)
vuldb.com/submit/1033604 (third-party-advisory)
vuldb.com/vuln/431794 (technical-description, vdb-entry)
vuldb.com/vuln/431794/cti (signature, permissions-required)

Frequently asked questions

What is CVE-2026-123677?: CVE-2026-123677 is a medium-severity vulnerability in 201206030 Novel, classified under Improper Authorization. CVSS score: 4.3/10. Published 2026-11-06.
How severe is CVE-2026-123677?: Medium severity. CVSS v3 base score is 4.3 out of 10.