Nagios XI up to 5.8.8 Update Checking cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Nagios XI up to 5.8.8. This vulnerability affects unknown code of the component Update Checking. Executing a manipulation can lead to cross site scripting. This vulnerability appears as CVE-2022-50588. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Nagios XI up to 5.8.8 and classified as problematic. This vulnerability affects an unknown part of the component Update Checking. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

Nagios XI versions prior to 5.8.9 are vulnerable to cross-site scripting (XSS) in the update checking feature. 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 advisory is available at nagios.com. This vulnerability was named CVE-2022-50588 since 10/30/2025. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 5.8.9 eliminates this vulnerability. The upgrade is hosted for download at nagios.com.

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Productinfo

Type

Vendor

Name

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: 3.5
VulDB Meta Temp Score: 3.4

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

CVSSv2info

AVACAuCIA
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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: XI 5.8.9

Timelineinfo

10/30/2025 CVE reserved
10/31/2025 +1 days Advisory disclosed
10/31/2025 +0 days VulDB entry created
10/31/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: nagios.com
Status: Confirmed

CVE: CVE-2022-50588 (🔒)
GCVE (CVE): GCVE-0-2022-50588
GCVE (VulDB): GCVE-100-330718

Entryinfo

Created: 10/31/2025 08:00
Changes: 10/31/2025 08:00 (69)
Complete: 🔍
Cache ID: 216::103

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