CVE-2025-8751Public exploitNetwork attack vector

HTML injection via unsanitized Category parameter

Published Aug 9, 2025 · Updated Aug 11, 2025

Cross-site scripting in Total WebShield 3.2.0 and earlier allows remote attackers to inject HTML into the Chrome Block Page. The Block Page inserts the Category URL parameter into its HTML without sanitization or output encoding, permitting iframe embedding. Exploitation requires user interaction and a blocked-site flow; injected content can replace or embed attacker-controlled page content in the extension context.

CVSS severity3.1
Low
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Total WebShield 3.2.0 and earlier allows remote attackers to inject HTML into the Chrome Block Page. The Block Page inserts the Category URL parameter into its HTML without sanitization or output encoding, permitting iframe embedding. Exploitation requires user interaction and a blocked-site flow; injected content can replace or embed attacker-controlled page content in the extension context.

The record

CVE
CVE-2025-8751
Published
Aug 9, 2025
Updated
Aug 11, 2025
Vendor
Total Security Limited
Product
Total WebShield
Classifications
CWE-79, CWE-94
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2025Record 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=3.0
  2. Affected versionversion=3.1
  3. Affected versionversion=3.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Total Security Limited · Total WebShieldversion=3.0; version=3.1; version=3.2.0

Published CVSS scores

3.1VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
1.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
2.6VulDBAV:N/AC:H/Au:N/C:N/I:P/A:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')

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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