CVE-2022-4400Network attack vector

Browser script execution via crafted title

Published Dec 11, 2022 · Updated Apr 15, 2025

Cross-site scripting in the Title Handler of zbl1996 FS-Blog allows remote authenticated users to execute script in a visitor's browser. Published sources identify manipulation of title input but do not disclose the responsible code path, encoding failure, or whether the payload is stored or reflected. Exploitation requires low-privileged access and visitor interaction with the crafted title, allowing changes to browser-rendered content.

CVSS severity6.1
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in the Title Handler of zbl1996 FS-Blog allows remote authenticated users to execute script in a visitor's browser. Published sources identify manipulation of title input but do not disclose the responsible code path, encoding failure, or whether the payload is stored or reflected. Exploitation requires low-privileged access and visitor interaction with the crafted title, allowing changes to browser-rendered content.

The record

CVE
CVE-2022-4400
Published
Dec 11, 2022
Updated
Apr 15, 2025
Vendor
zbl1996
Product
FS-Blog
Classifications
CWE-707, CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2025Record 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=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

zbl1996 · FS-Blogversion=n/a

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-707Improper Neutralization
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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