CVE-2026-19697Network attack vector

Stored XSS via unsanitized SVG upload

Published Aug 20, 2026 · Updated Aug 20, 2026

Stored XSS in Roxnor GutenKit before 2.5.0 allows remote authenticated users to execute script in other users' browsers via crafted SVG uploads. The plugin enables multiple SVG upload paths but does not pass every path through SVG sanitization; the 2.5.0 changelog identifies the REST media and sideload upload paths as sanitization bypasses. Exploitation requires an account with file upload capability, such as Author, and the payload runs when a victim opens the uploaded SVG, including an administrator viewing the file on the WordPress site.

CVSS severity6.8
Medium
EPSS probability0.29%
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 Roxnor GutenKit before 2.5.0 allows remote authenticated users to execute script in other users' browsers via crafted SVG uploads. The plugin enables multiple SVG upload paths but does not pass every path through SVG sanitization; the 2.5.0 changelog identifies the REST media and sideload upload paths as sanitization bypasses. Exploitation requires an account with file upload capability, such as Author, and the payload runs when a victim opens the uploaded SVG, including an administrator viewing the file on the WordPress site.

The record

CVE
CVE-2026-19697
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
Roxnor
Product
GutenKit
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 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 <2.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Roxnor · GutenKitversion=0 <2.5.0

Published CVSS scores

6.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

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

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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