CVE-2026-16685Network attack vector

Contributor-level stored XSS via unescaped icon attribute

Published Aug 1, 2026 · Updated Aug 1, 2026

Stored XSS in the Download Manager plugin 3.3.66 and earlier allows remote authenticated users to inject scripts through an icon shortcode. The category shortcode passes the icon value into UI::img(), which emits it in image src or style markup without contextual escaping at render time. Contributor-level access is required, and the injected code runs whenever the affected page is viewed, enabling actions within the viewer's browser session.

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 Download Manager plugin 3.3.66 and earlier allows remote authenticated users to inject scripts through an icon shortcode. The category shortcode passes the icon value into UI::img(), which emits it in image src or style markup without contextual escaping at render time. Contributor-level access is required, and the injected code runs whenever the affected page is viewed, enabling actions within the viewer's browser session.

The record

CVE
CVE-2026-16685
Published
Aug 1, 2026
Updated
Aug 1, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

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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