CVE-2023-6164Network attack vector

Administrator-level CSS injection via unsanitized newColor

Published Nov 22, 2023 · Updated Apr 8, 2026

CSS injection in MainWP Dashboard 4.5.1.2 and earlier allows remote authenticated users to alter site-tag styling via newColor. The site-tag color update accepts the newColor value without sufficient CSS sanitization, permitting arbitrary CSS values in site tags. Administrator-level access is required, and the documented consequence is limited to unauthorized modification of Dashboard presentation.

CVSS severity2.2
Low
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSS injection in MainWP Dashboard 4.5.1.2 and earlier allows remote authenticated users to alter site-tag styling via newColor. The site-tag color update accepts the newColor value without sufficient CSS sanitization, permitting arbitrary CSS values in site tags. Administrator-level access is required, and the documented consequence is limited to unauthorized modification of Dashboard presentation.

The record

CVE
CVE-2023-6164
Published
Nov 22, 2023
Updated
Apr 8, 2026
Vendor
MainWP
Product
MainWP Dashboard
Classifications
CWE-79, CWE-74
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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=0 <=4.5.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

MainWP · MainWP Dashboardversion=0 <=4.5.1.2

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
2.2WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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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