CVE-2026-3619Public exploitNetwork attack vector

Authenticated stored XSS via unescaped shortcode titles

Published Mar 21, 2026 · Updated Mar 21, 2026

Stored XSS in Sheets2Table 0.4.1 and earlier allows remote authenticated users to inject scripts through the titles shortcode attribute. S2T_Functions::trim_array_values() only removes whitespace, and display_table_header() echoes each title into a table-header element without HTML escaping. Contributor-level access is required; the stored script runs in a visitor's browser whenever the affected page is viewed.

CVSS severity6.4
Medium
EPSS probability0.19%
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 Sheets2Table 0.4.1 and earlier allows remote authenticated users to inject scripts through the titles shortcode attribute. S2T_Functions::trim_array_values() only removes whitespace, and display_table_header() echoes each title into a table-header element without HTML escaping. Contributor-level access is required; the stored script runs in a visitor's browser whenever the affected page is viewed.

The record

CVE
CVE-2026-3619
Published
Mar 21, 2026
Updated
Mar 21, 2026
Vendor
tony.h
Product
Sheets2Table
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 21, 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=* <=0.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

tony.h · Sheets2Tableversion=* <=0.4.1

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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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