CVE-2026-1247Network attack vector

Administrator-level stored XSS via unescaped settings

Published Mar 21, 2026 · Updated Mar 21, 2026

Stored XSS in SEOS THEMES Survey 1.1 and earlier allows remote authenticated users with administrator access to inject scripts through settings. The plugin stores administrator-supplied setting values without sufficient sanitization, and inc/form.php and inc/shortcode.php render them without output escaping. Only multisite deployments and sites with unfiltered_html disabled expose this path; stored scripts run in browsers that render affected pages.

CVSS severity4.4
Medium
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 SEOS THEMES Survey 1.1 and earlier allows remote authenticated users with administrator access to inject scripts through settings. The plugin stores administrator-supplied setting values without sufficient sanitization, and inc/form.php and inc/shortcode.php render them without output escaping. Only multisite deployments and sites with unfiltered_html disabled expose this path; stored scripts run in browsers that render affected pages.

The record

CVE
CVE-2026-1247
Published
Mar 21, 2026
Updated
Mar 21, 2026
Vendor
SEOS THEMES
Product
Survey
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

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=* <=1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

SEOS THEMES · Surveyversion=* <=1.1

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/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
Privilegesadmin
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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