CVE-2025-45890: Directory Traversal vulnerability in novel plus before v.5.1.0 allows a remote attacker to execute arbitrary c

Q: How do I fix CVE-2025-45890?

novel-plus: upgrade to 5.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-45890 being exploited?

CVE-2025-45890 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-2025-45890 affect?

CVE-2025-45890 affects novel-plus. Severity is critical (CVSS 9.8). Directory Traversal vulnerability in novel plus before v.5.1.0 allows a remote attacker to execute arbitrary code via the filePath parameter

Q: How urgent is CVE-2025-45890?

Priority 66/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-45890 is a critical-severity flaw (CVSS 9.8) affecting novel-plus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory Traversal vulnerability in novel plus before v.5.1.0 allows a remote attacker to execute arbitrary code via the filePath parameter

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-22
Published	2025-06-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: xxyopen

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

Am I affected?

Timeline

2025-06-20 16:15 UTCPublished CVE record published
2026-06-17 09:25 UTCUpdated Record last modified

xxyopen novel-plus UPGRADE

Affected: < 5.1.0

Fixed in: 5.1.0

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 5.1.0 (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.

Exact fixes by distribution

Fedora 46 · byobu · FIXED · 7.23-1.fc46 · FEDORA-2026-08f2b53446 · source

sudo dnf upgrade --advisory=FEDORA-2026-08f2b53446

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/SecureCore1/CVE/blob/main/novel-plus/readme.md

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-2025-45890?

novel-plus: upgrade to 5.1.0. Exact commands for each OS are on this page.

Is CVE-2025-45890 being exploited?

CVE-2025-45890 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-2025-45890 affect?

CVE-2025-45890 affects novel-plus. Severity is critical (CVSS 9.8). Directory Traversal vulnerability in novel plus before v.5.1.0 allows a remote attacker to execute arbitrary code via the filePath parameter

How urgent is CVE-2025-45890?

Priority 66/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

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-2025-6533 MEDIUM 5.6 UPGRADE A vulnerability, which was classified as critical, has been 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

References

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