CVE-2025-8440Network attack vector

Stored XSS via unescaped member name fields

Published Sep 27, 2025 · Updated Sep 27, 2025

Stored XSS in WP Darko Team Members 5.3.5 and earlier allows remote authenticated users to inject scripts through member name fields. The metabox save path stores first- and last-name values without sufficient sanitization, while shortcode rendering inserts them into page output without escaping. Contributor-level access is sufficient, and the stored script runs in the browser of anyone who opens a page containing the affected team shortcode.

CVSS severity6.4
Medium
EPSS probability0.24%
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 WP Darko Team Members 5.3.5 and earlier allows remote authenticated users to inject scripts through member name fields. The metabox save path stores first- and last-name values without sufficient sanitization, while shortcode rendering inserts them into page output without escaping. Contributor-level access is sufficient, and the stored script runs in the browser of anyone who opens a page containing the affected team shortcode.

The record

CVE
CVE-2025-8440
Published
Sep 27, 2025
Updated
Sep 27, 2025
Vendor
WP Darko
Product
Team Members
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 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=* <=5.3.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WP Darko · Team Membersversion=* <=5.3.5

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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