VDB-330684 · CVE-2011-10040 · GCVE-0-2011-10040

Nagios XI up to 2011R1.8 Link 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.
4.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Nagios XI up to 2011R1.8 and classified as problematic. This affects an unknown part of the component Link Handler. The manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2011-10040. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Nagios XI up to 2011R1.8. It has been classified as problematic. Affected is an unknown code of the component Link Handler. The manipulation 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. CVE summarizes:

Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the link-handling functions used by status and report pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

The weakness was shared by 0a29406d9794e4f9b30b3c5d6702c708. The advisory is shared for download at nagios.com. This vulnerability is traded as CVE-2011-10040 since 10/28/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 2011R1.9 eliminates this vulnerability. The upgrade is hosted for download at nagios.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Log Management Software

Vendor

Nagios

Name

Version

License

commercial

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: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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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: 🔒
Status: Not defined

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: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: XI 2011R1.9

Timelineinfo

10/28/2025 CVE reserved
10/31/2025 +3 days Advisory disclosed
10/31/2025 +0 days VulDB entry created
11/08/2025 +7 days VulDB entry last update

Sourcesinfo

Advisory: nagios.com
Researcher: 0a29406d9794e4f9b30b3c5d6702c708
Status: Confirmed

CVE: CVE-2011-10040 (🔒)
GCVE (CVE): GCVE-0-2011-10040
GCVE (VulDB): GCVE-100-330684

Entryinfo

Created: 10/31/2025 07:52
Updated: 11/08/2025 00:11
Changes: 10/31/2025 07:52 (70), 11/08/2025 00:11 (11)
Complete: 🔍
Cache ID: 216::103