CVE-2023-4636Public exploitNetwork attack vector

Stored script execution via unescaped email settings

Published Sep 5, 2023 · Updated Apr 8, 2026

Stored XSS in Media Jedi LLP User Private Files 2.0.3 and earlier allows remote authenticated users to execute scripts through admin settings. The plugin stores upfp_email_content_field and upfp_email_subject_field values without sufficient sanitization, then renders them unescaped on /wp-admin/admin.php?page=upvf-free. Administrator access is required, and exposure is limited to multisite installations or sites with unfiltered_html disabled; opening the settings page runs the stored script in another user's browser.

CVSS severity4.4
Medium
EPSS probability0.99%
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 Media Jedi LLP User Private Files 2.0.3 and earlier allows remote authenticated users to execute scripts through admin settings. The plugin stores upfp_email_content_field and upfp_email_subject_field values without sufficient sanitization, then renders them unescaped on /wp-admin/admin.php?page=upvf-free. Administrator access is required, and exposure is limited to multisite installations or sites with unfiltered_html disabled; opening the settings page runs the stored script in another user's browser.

The record

CVE
CVE-2023-4636
Published
Sep 5, 2023
Updated
Apr 8, 2026
Vendor
Media Jedi LLP
Product
User Private Files
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 5, 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 <=2.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Media Jedi LLP · User Private Filesversion=0 <=2.0.3

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/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 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 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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