CVE-2023-7171Public exploitNetwork attack vector

Stored script execution via unvalidated friendly-link URL

Published Dec 29, 2023 · Updated Nov 20, 2024

Stored cross-site scripting in Novel-Plus 4.0 through 4.2 allows remote authenticated users to execute script through a friendly-link URL. FriendLinkController saves and updates the linkUrl field without applying URL validation, allowing an unsafe value to persist as a public friendly link. The write routes require administrative friendly-link permissions, and a victim must follow the stored link before browser-context script executes.

CVSS severity2.4
Low
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stored cross-site scripting in Novel-Plus 4.0 through 4.2 allows remote authenticated users to execute script through a friendly-link URL. FriendLinkController saves and updates the linkUrl field without applying URL validation, allowing an unsafe value to persist as a public friendly link. The write routes require administrative friendly-link permissions, and a victim must follow the stored link before browser-context script executes.

The record

CVE
CVE-2023-7171
Published
Dec 29, 2023
Updated
Nov 20, 2024
Vendor
xxyopen
Product
Novel-Plus
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 20, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0
  2. Affected versionversion=4.1
  3. Affected versionversion=4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

xxyopen · Novel-Plusversion=4.0; version=4.1; version=4.2

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
2.4VulDBCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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