CVE-2026-76562Network attack vector

Stored XSS via unescaped sidebar description

Published Sep 10, 2026 · Updated Sep 10, 2026

Stored XSS in OTWthemes Sidebar Manager Light 1.18 and earlier allows remote attackers to inject scripts through sbm_description. The sidebar action handlers accept sbm_description without sufficient input sanitization, then the sidebar listing renders the stored value without output escaping. No authentication is required to store the payload, and the script runs in the browser of any user who opens the affected sidebar page, enabling actions in that user's WordPress session.

CVSS severity7.2
High
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 OTWthemes Sidebar Manager Light 1.18 and earlier allows remote attackers to inject scripts through sbm_description. The sidebar action handlers accept sbm_description without sufficient input sanitization, then the sidebar listing renders the stored value without output escaping. No authentication is required to store the payload, and the script runs in the browser of any user who opens the affected sidebar page, enabling actions in that user's WordPress session.

The record

CVE
CVE-2026-76562
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
OTWthemes.com
Product
Sidebar Manager Light
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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 <=1.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OTWthemes.com · Sidebar Manager Lightversion=0 <=1.18

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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