CVE-2025-6533: A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3

Q: How do I fix CVE-2025-6533?

novel-plus: upgrade to newer than 5.1.3. Exact commands for each OS are on this page.

Q: Is CVE-2025-6533 being exploited?

CVE-2025-6533 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-6533 affect?

CVE-2025-6533 affects novel-plus. Severity is medium (CVSS 5.6). A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3. Affected by this issue is the function ajaxLogin of the file novel-admin/src/main/java/com/java2nb/system/controller/LoginControl

Q: How urgent is CVE-2025-6533?

Priority 41/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.6REMOTEUPGRADE

CVE-2025-6533 is a medium-severity flaw (CVSS 5.6) affecting novel-plus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3. Affected by this issue is the function ajaxLogin of the file novel-admin/src/main/java/com/java2nb/system/controller/LoginController.java of the component CATCHA Handler. The manipulation leads to authentication bypass by capture-replay. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.6 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-287, CWE-294, CWE-307
Published	2025-06-24
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: xxyopen

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-24 00:15 UTCPublished CVE record published
2026-06-17 10:02 UTCUpdated Record last modified

xxyopen novel-plus UPGRADE

Affected: <= 5.1.3

Fixed in: newer than 5.1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy novel-plus || rpm -q novel-plus || novel-plus --version

2. UPGRADE to newer than 5.1.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade novel-plus

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade novel-plus

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-6533?

novel-plus: upgrade to newer than 5.1.3. Exact commands for each OS are on this page.

Is CVE-2025-6533 being exploited?

CVE-2025-6533 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-6533 affect?

CVE-2025-6533 affects novel-plus. Severity is medium (CVSS 5.6). A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3. Affected by this issue is the function ajaxLogin of the file novel-admin/src/main/java/com/java2nb/system/controller/LoginControl

How urgent is CVE-2025-6533?

Priority 41/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Java vulnerabilities

Related CVEs

CVE-2025-6535 MEDIUM 6.3 UPGRADE A vulnerability has been found in xxyopen/201206030 novel-plus up to 5.1.3 and classified as critical
CVE-2025-6534 MEDIUM 4.2 UPGRADE A vulnerability, which was classified as problematic, was found in xxyopen/201206030 novel-plus up to 5.1.3
CVE-2025-60299 MEDIUM 5.4 DOWNGRADE Novel-Plus with 5.2.0 was discovered to contain a Stored Cross-Site Scripting (XSS) vulnerability via the /boo
CVE-2025-60298 MEDIUM 5.4 UPGRADE Novel-Plus up to 5.2.4 was discovered to contain a Stored Cross-Site Scripting (XSS) vulnerability via the /au
CVE-2025-4019 HIGH 7.3 UPGRADE A vulnerability, which was classified as critical, was found in 20120630 Novel-Plus up to 0e156c04b4b7ce0563be

References

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