WatchGuard Fireware OS up to 12.11.1 SpamBlocker cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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2.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in WatchGuard Fireware OS up to 12.11.1. The affected element is an unknown function of the component SpamBlocker Module. The manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2025-4804. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in WatchGuard Fireware OS up to 12.11.1 and classified as problematic. This issue affects an unknown code of the component SpamBlocker Module. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS allows Stored XSS via the spamBlocker module. This vulnerability requires an authenticated administrator session to a locally managed Firebox. This issue affects Fireware OS: from 12.0 through 12.11.1.

The advisory is shared at watchguard.com. The identification of this vulnerability is CVE-2025-4804 since 05/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 12.11.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

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Version

License

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: 2.4
VulDB Meta Temp Score: 2.3

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Fireware OS 12.11.2

Timelineinfo

05/16/2025 🔍
05/17/2025 +1 days 🔍
05/17/2025 +0 days 🔍
05/17/2025 +0 days 🔍

Sourcesinfo

Advisory: wgsa-2025-00006
Status: Confirmed

CVE: CVE-2025-4804 (🔍)
GCVE (CVE): GCVE-0-2025-4804
GCVE (VulDB): GCVE-100-309425

Entryinfo

Created: 05/17/2025 07:58
Changes: 05/17/2025 07:58 (68)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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