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CVE-2025-8751

22
FAUCET Score

CVE-2025-8751 describes a problematic cross-site scripting (XSS) vulnerability in the Protected Total WebShield Extension for Chrome, affecting versions up to 3.2.0. This flaw arises from improper handling of the 'Category' argument within the Block Page component. With a CVSS score of 6.1 (Medium), the vulnerability has a network attack vector and low attack complexity, but requires user interaction. A successful exploit could lead to limited impact on confidentiality and integrity (C:L/I:L), though the overall exploitability is considered difficult. While the exploit has been publicly disclosed, there are no known Metasploit or Nuclei modules, nor is it listed on ExploitDB. The vulnerability is not currently in CISA's KEV catalog, and there is minimal community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.2.0CPE matchmatch criteria
cpe:2.3:a:totalwebshield:total_webshield:*:*:*:*:*:chrome:*:*

CVSS Data

CVSS version used by this source: 4.0

1.3LOW

CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
NONE
VS Integrity
LOW
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 41st percentile among its peer group of 26,220 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

news.fmisec.com / self-html-injection-in-total-webshield-chrome-extension
ExploitThird Party Advisory
news.fmisec.com / self-html-injection-in-total-webshield-chrome-extension
ExploitThird Party Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry