CVE-2023-46640Network attack vector

Stored script execution via unescaped shortcode attributes

Published Nov 8, 2023 · Updated Apr 29, 2026

Stored XSS in D. Relton Medialist 1.3.9 and earlier allows remote authenticated users to inject scripts through shortcode attributes. The plugin's shortcode processing accepts user-supplied attributes without sufficient input sanitization and renders them without sufficient output escaping. Contributor-level access is required to store a crafted shortcode in a page or post, and the script executes when another user views that content.

CVSS severity6.5
Medium
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

Stored XSS in D. Relton Medialist 1.3.9 and earlier allows remote authenticated users to inject scripts through shortcode attributes. The plugin's shortcode processing accepts user-supplied attributes without sufficient input sanitization and renders them without sufficient output escaping. Contributor-level access is required to store a crafted shortcode in a page or post, and the script executes when another user views that content.

The record

CVE
CVE-2023-46640
Published
Nov 8, 2023
Updated
Apr 29, 2026
Vendor
D. Relton
Product
Medialist
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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=n/a <=1.3.9 changes=[{"at":"1.4.0","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D. Relton · Medialistversion=n/a <=1.3.9 changes=[{"at":"1.4.0","status":"unaffected"}]

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
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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