CVE-2026-94277Network attack vector

Stored XSS via unescaped galaxy name

Published Sep 21, 2026 · Updated Sep 21, 2026

Stored XSS in MISP before 2.5.47 allows remote authenticated users to execute script in a victim's browser via a crafted galaxy name. The statistics_galaxymatrix.ctp view passes the stored galaxy name directly to sprintf() for HTML output without applying CakePHP's h() encoder. Exploitation requires perm_galaxy_editor access and a victim who opens the galaxy matrix statistics page, exposing the victim's session and authorized MISP actions.

CVSS severity6.3
Medium
EPSS probability0.40%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in MISP before 2.5.47 allows remote authenticated users to execute script in a victim's browser via a crafted galaxy name. The statistics_galaxymatrix.ctp view passes the stored galaxy name directly to sprintf() for HTML output without applying CakePHP's h() encoder. Exploitation requires perm_galaxy_editor access and a victim who opens the galaxy matrix statistics page, exposing the victim's session and authorized MISP actions.

The record

CVE
CVE-2026-94277
Published
Sep 21, 2026
Updated
Sep 21, 2026
Vendor
MISP Project
Product
MISP
Classifications
CWE-79, CAPEC-63, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 2026Record 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=0 <2.5.47

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MISP Project · MISPversion=0 <2.5.47

Published CVSS scores

6.3CIRCLCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (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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