CVE-2023-2600Public exploitNetwork attack vector

Administrator-level stored XSS via unescaped plugin settings

Published Jun 19, 2023 · Updated Apr 23, 2025

Stored cross-site scripting in Art Project Group Custom Base Terms before 1.0.3 allows remote authenticated users to execute script via settings. The plugin stores setting values without input sanitization and outputs them without escaping, causing a crafted value to run when the affected page reloads. Administrator-level access and a later page load are required; the flaw bypasses unfiltered_html restrictions, including in WordPress multisite.

CVSS severity4.8
Medium
EPSS probability0.47%
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 Art Project Group Custom Base Terms before 1.0.3 allows remote authenticated users to execute script via settings. The plugin stores setting values without input sanitization and outputs them without escaping, causing a crafted value to run when the affected page reloads. Administrator-level access and a later page load are required; the flaw bypasses unfiltered_html restrictions, including in WordPress multisite.

The record

CVE
CVE-2023-2600
Published
Jun 19, 2023
Updated
Apr 23, 2025
Vendor
Art Project Group
Product
Custom Base Terms
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=0 <1.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Art Project Group · Custom Base Termsversion=0 <1.0.3

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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