CVE-2025-66102Network attack vector

Unauthenticated browser script execution via reflected input

Published Dec 18, 2025 · Updated Dec 18, 2025

Reflected XSS in FolioVision FV Antispam 2.7 and earlier allows remote attackers to run script in a user's browser via a crafted request. The plugin reflects request input into generated HTML without sufficient sanitization or output escaping; the affected parameter and code path are undisclosed. Exploitation requires the target to follow a malicious link or perform a similar action, after which attacker-supplied script executes in the target's browser context.

CVSS severity7.1
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in FolioVision FV Antispam 2.7 and earlier allows remote attackers to run script in a user's browser via a crafted request. The plugin reflects request input into generated HTML without sufficient sanitization or output escaping; the affected parameter and code path are undisclosed. Exploitation requires the target to follow a malicious link or perform a similar action, after which attacker-supplied script executes in the target's browser context.

The record

CVE
CVE-2025-66102
Published
Dec 18, 2025
Updated
Dec 18, 2025
Vendor
FolioVision
Product
FV Antispam
Classifications
CWE-79, CAPEC-591, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 18, 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=n/a <=<= 2.7 changes=[{"at":"2.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FolioVision · FV Antispamversion=n/a <=<= 2.7 changes=[{"at":"2.8","status":"unaffected"}]

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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