CVE-2022-1593Public exploitNetwork attack vector

Stored XSS via forged settings update

Published Jun 27, 2022 · Updated Aug 3, 2024

Stored cross-site scripting in Site Offline Or Coming Soon Or Maintenance Mode 1.6.6 and earlier allows remote attackers to execute script via CSRF. The settings handler accepts cp_siteoffline_content without a CSRF check, sanitization, or output escaping, then stores the supplied markup. A logged-in administrator must visit attacker-controlled content that submits the forged request; the payload then executes when the stored content is rendered in a browser.

CVSS severity6.1
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Site Offline Or Coming Soon Or Maintenance Mode 1.6.6 and earlier allows remote attackers to execute script via CSRF. The settings handler accepts cp_siteoffline_content without a CSRF check, sanitization, or output escaping, then stores the supplied markup. A logged-in administrator must visit attacker-controlled content that submits the forged request; the payload then executes when the stored content is rendered in a browser.

The record

CVE
CVE-2022-1593
Published
Jun 27, 2022
Updated
Aug 3, 2024
Vendor
Chandra Shekhar Sahu
Product
Site Offline Or Coming Soon Or Maintenance Mode
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 27, 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=1.6.6 <=1.6.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Chandra Shekhar Sahu · Site Offline Or Coming Soon Or Maintenance Modeversion=1.6.6 <=1.6.6

Published CVSS scores

4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NVDCVSS: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 exploitPublished

Weakness, pattern, technique

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

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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