CVE-2017-11507: Tenable Check_MK vulnerability

CVE-2017-11507: A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.2.8x prior to 1.2.8p25 and 1.4.0x...

A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.2.8x prior to 1.2.8p25 and 1.4.0x prior to 1.4.0p9, allowing an unauthenticated attacker to inject arbitrary HTML or JavaScript via the output_format parameter, and the username parameter of failed HTTP basic authentication attempts, which is returned unencoded in an internal server error page.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 22:20 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2017-11507 is an unauthenticated cross-site scripting issue in older Check_MK releases. A crafted request could cause attacker-controlled HTML or JavaScript to appear in server error or output responses. The main business risk is compromise of users who access the monitoring interface, especially administrators. Exposure is limited to organizations still running the listed legacy Check_MK versions, especially where the web interface is reachable by untrusted networks or users. Treat as a targeted remediation item for monitoring systems. Prioritize externally reachable or administrator-facing Check_MK deployments, because monitoring consoles often have privileged operational visibility. Mitigation focus: Upgrade Check_MK 1.2.8x to 1.2.8p25 or later.; Upgrade Check_MK 1.4.0x to 1.4.0p9 or later.; Restrict Check_MK web access to trusted networks or VPN users..

Prepared: Jun 12, 2026, 19:33 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 11, 2017, 16:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://www.tenable.com/security/research/tra-2017-20CVE reference · x_refsource_MISC

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

TenableCheck_MK1.2.8x prior to 1. 2.8p25, 1.4.0x prior to 1.4.0p9Listed

Weakness

CWE details

No CWE listed

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