CVE-2022-27496Network attack vector

Administrator account creation via cross-site scripting

Published Mar 31, 2022 · Updated Aug 3, 2024

Cross-site scripting in Zero-channel BBS Plus v0.7.4 and earlier allows remote attackers to execute scripts in an administrator's browser. The CGI bulletin board fails to neutralize attacker-controlled content before it is rendered in the management interface. A remote attacker must induce an administrator to view crafted content; script execution can create an administrator account, expose poster origin data, and alter, edit, or delete board content.

CVSS severity6.1
Medium
EPSS probability0.75%
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 Zero-channel BBS Plus v0.7.4 and earlier allows remote attackers to execute scripts in an administrator's browser. The CGI bulletin board fails to neutralize attacker-controlled content before it is rendered in the management interface. A remote attacker must induce an administrator to view crafted content; script execution can create an administrator account, expose poster origin data, and alter, edit, or delete board content.

The record

CVE
CVE-2022-27496
Published
Mar 31, 2022
Updated
Aug 3, 2024
Vendor
Zero-Channel BBS Plus Developers
Product
Zero-channel BBS Plus
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=v0.7.4 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zero-Channel BBS Plus Developers · Zero-channel BBS Plusversion=v0.7.4 and earlier

Published CVSS scores

4.3[email protected]AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1[email protected]CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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