CVE Explorer
CVE-2026-54393
A stored cross-site scripting vulnerability exists in MISP when the Overmind theme is used. The setHomePage endpoint previously saved the user-controlled path value through setSettingInternal(), bypassing the normal setSetting() validation logic, including validate_homepage, which requires homepage paths to start with /. As a result, an authenticated user could store an arbitrary homepage value, including an XSS payload.
The stored value was later rendered in app/View/News/index.ctp as the href
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"misp","repo":"https://github.com/misp/misp","vendor":"misp","versions":[{"lessThan":"2.5.40","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:9e9053c8388160106241002b5a18810732bd2fe83d82495619b49409742b7570 · sha256:e53badb9a881e2e1… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:9e9053c8388160106241002b5a18810732bd2fe83d82495619b49409742b7570 · sha256:e53badb9a881e2e1… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:9e9053c8388160106241002b5a18810732bd2fe83d82495619b49409742b7570 · sha256:e53badb9a881e2e1… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["patch"],"url":"https://github.com/MISP/MISP/commit/d4733ca5d2fcceb12abc72ec6069f2484e3b8ec2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:9e9053c8388160106241002b5a18810732bd2fe83d82495619b49409742b7570 · sha256:e53badb9a881e2e1… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.