CVE-2025-11737Public exploitNetwork attack vector

Stored XSS via unescaped SNS title attribute

Published Feb 18, 2026 · Updated Feb 18, 2026

Stored XSS in Vektor,Inc. VK All in One Expansion Unit 9.112.3 and earlier allows remote authenticated users to execute scripts via SNS Title. The metabox handler stores vkExUnit_sns_title without sanitization, and the Open Graph tag builder inserts it into a content attribute without attribute escaping. Contributor-level access is sufficient; a crafted quote breaks out of the attribute, causing persistent script execution for visitors and administrators who view the post.

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 Vektor,Inc. VK All in One Expansion Unit 9.112.3 and earlier allows remote authenticated users to execute scripts via SNS Title. The metabox handler stores vkExUnit_sns_title without sanitization, and the Open Graph tag builder inserts it into a content attribute without attribute escaping. Contributor-level access is sufficient; a crafted quote breaks out of the attribute, causing persistent script execution for visitors and administrators who view the post.

The record

CVE
CVE-2025-11737
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
Vektor,Inc.
Product
VK All in One Expansion Unit
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 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=* <=9.112.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Vektor,Inc. · VK All in One Expansion Unitversion=* <=9.112.3

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')
T1203Exploitation for Client Execution

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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