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CVE-2026-53693

A stored cross-site scripting vulnerability existed in MISP BSimVis tag rendering code. Several client-side rendering paths interpolated tag names, collection names, entity identifiers, cluster names, and tag metadata directly into HTML, HTML attributes, inline JavaScript event handlers, and CSS style values without context-appropriate escaping. The patch adds shared escaping helpers for HTML, attributes, JavaScript strings, and CSS color validation, then applies them across tag badges, tooltips
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:28ecb66f4430a6a64adddd7b5716606403cfdb20e8dabd526c509d2434dc4168
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-116","description":"CWE-116 Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:95daf918548cdfc5b8ff6bd9bf1eb5b2e6c31ba5ea773b53c7a3460b11516d79 · sha256:73d41bf9ab9624e6… · /containers/cna/problemTypes/1/descriptions/0

{"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_v5cwe
    urn:baitaphish:normalized-source-record:v2:95daf918548cdfc5b8ff6bd9bf1eb5b2e6c31ba5ea773b53c7a3460b11516d79 · sha256:73d41bf9ab9624e6… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"bsimvis","repo":"https://github.com/MISP/bsimvis","vendor":"misp","versions":[{"lessThanOrEqual":"v0.2.0","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:95daf918548cdfc5b8ff6bd9bf1eb5b2e6c31ba5ea773b53c7a3460b11516d79 · sha256:73d41bf9ab9624e6… · /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":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NON…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:95daf918548cdfc5b8ff6bd9bf1eb5b2e6c31ba5ea773b53c7a3460b11516d79 · sha256:73d41bf9ab9624e6… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-116","description":"CWE-116 Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:95daf918548cdfc5b8ff6bd9bf1eb5b2e6c31ba5ea773b53c7a3460b11516d79 · sha256:73d41bf9ab9624e6… · /containers/cna/problemTypes/1/descriptions/0
{"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_v5cwe
    urn:baitaphish:normalized-source-record:v2:95daf918548cdfc5b8ff6bd9bf1eb5b2e6c31ba5ea773b53c7a3460b11516d79 · sha256:73d41bf9ab9624e6… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["patch"],"url":"https://github.com/MISP/bsimvis/commit/7bcd2c2e27647dccdfb71877e905fbb032124a63"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:95daf918548cdfc5b8ff6bd9bf1eb5b2e6c31ba5ea773b53c7a3460b11516d79 · sha256:73d41bf9ab9624e6… · /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.

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