VDB-319245 · CVE-2025-8751 · EUVD-2025-24047

Protected Total WebShield Extension up to 3.2.0 on Chrome Block Page Category cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.0	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Protected Total WebShield Extension up to 3.2.0 on Chrome and classified as problematic. This vulnerability affects unknown code of the component Block Page. Performing a manipulation of the argument Category results in cross site scripting. This vulnerability is known as CVE-2025-8751. Remote exploitation of the attack is possible. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Protected Total WebShield Extension up to 3.2.0 on Chrome. It has been classified as problematic. This affects an unknown part of the component Block Page. The manipulation of the argument category with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity.

The advisory is shared at news.fmisec.com. This vulnerability is uniquely identified as CVE-2025-8751. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is shared for download at news.fmisec.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-24047). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Protected

Name

Total WebShield Extension

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.0

VulDB Base Score: 3.1
VulDB Temp Score: 2.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔒

CNA Base Score: 3.1
CNA Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/08/2025 Advisory disclosed
08/08/2025 +0 days VulDB entry created
09/16/2025 +39 days VulDB entry last update

Sourcesinfo

Advisory: news.fmisec.com
Status: Not defined

CVE: CVE-2025-8751 (🔒)
GCVE (CVE): GCVE-0-2025-8751
GCVE (VulDB): GCVE-100-319245
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/08/2025 13:43
Updated: 09/16/2025 23:26
Changes: 08/08/2025 13:43 (57), 08/09/2025 14:03 (30), 08/09/2025 15:29 (1), 08/12/2025 07:38 (1), 09/16/2025 23:26 (11)
Complete: 🔍
Submitter: KhoaDao-FPT-Metrodata-Indonesia
Cache ID: 216:A89:103

Submitinfo

Accepted

Submit #623677: Total WebShield Chrome Antivirus Protection v3.2.0 Client‑side Self‑HTML Injection (by KhoaDao-FPT-Metrodata-Indonesia)

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