CVE-2025-6261Network attack vector

Stored XSS via unsanitized shortcode attributes

Published Jul 23, 2025 · Updated Apr 8, 2026

Stored XSS in the Fleetwire plugin 1.0.19 and earlier allows remote authenticated users to inject scripts through fleetwire_list attributes. The fleetwire_list shortcode accepts user-supplied attributes without sufficient sanitization and emits them without output escaping. Contributor-level access is required; injected scripts execute whenever a user opens the affected page, enabling data access or page modification in that user's browser.

CVSS severity6.4
Medium
EPSS probability0.23%
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 the Fleetwire plugin 1.0.19 and earlier allows remote authenticated users to inject scripts through fleetwire_list attributes. The fleetwire_list shortcode accepts user-supplied attributes without sufficient sanitization and emits them without output escaping. Contributor-level access is required; injected scripts execute whenever a user opens the affected page, enabling data access or page modification in that user's browser.

The record

CVE
CVE-2025-6261
Published
Jul 23, 2025
Updated
Apr 8, 2026
Vendor
Fleetwire
Product
Fleetwire
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 23, 2025CVE 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 <=1.0.19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fleetwire · Fleetwireversion=0 <=1.0.19

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.

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')
T1059.007JavaScript

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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