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CVE-2026-28352

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.11, the API endpoint used to manage event series is missing an access check, allowing unauthenticated/unauthorized access to this endpoint. The impact of this is limited to getting the metadata (title, category chain, start/end date) for events in an existing series, deleting an existing event series, and modifying an existing event series. This vulnerability
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:137242c5d75d64776c5bb4d971a6c4356f4e5c5e68690582c50ac502a4432e81
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"indico","vendor":"indico","versions":[{"status":"affected","version":"< 3.3.11"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:35f2d1a1ecda237080ecdffce988ba446c4fb65e42a1698502c28c46e4c33f98 · sha256:1d4057e95ccf581b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:35f2d1a1ecda237080ecdffce988ba446c4fb65e42a1698502c28c46e4c33f98 · sha256:1d4057e95ccf581b… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:35f2d1a1ecda237080ecdffce988ba446c4fb65e42a1698502c28c46e4c33f98 · sha256:1d4057e95ccf581b… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/indico/indico/releases/tag/v3.3.11","tags":["x_refsource_MISC"],"url":"https://github.com/indico/indico/releases/tag/v3.3.11"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35f2d1a1ecda237080ecdffce988ba446c4fb65e42a1698502c28c46e4c33f98 · sha256:1d4057e95ccf581b… · /containers/cna/references/1
{"name":"https://github.com/indico/indico/security/advisories/GHSA-rfpp-2hgm-gp5v","tags":["x_refsource_CONFIRM"],"url":"https://github.com/indico/indico/security/advisories/GHSA-rfpp-2hgm-gp5v"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:35f2d1a1ecda237080ecdffce988ba446c4fb65e42a1698502c28c46e4c33f98 · sha256:1d4057e95ccf581b… · /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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