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CVE-2025-66548

Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. Prior to 1.12.7, 1.14.4, and 1.15.1, file extension can be spoofed by using RTLO characters, tricking users into download files with a different extension than what is displayed. This vulnerability is fixed in 1.12.7, 1.14.4, and 1.15.1.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2fab104b050910a0367823472394e8d78a3e71d6a6fe0ec83e39dbf7321e0965
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"security-advisories","vendor":"nextcloud","versions":[{"status":"affected","version":">= 1.15.0-beta.1, < 1.15.1"},{"status":"affected","version":">= 1.14.0-beta.1, < 1.14.4"},{"status":"affected","version":"< 1.12.7"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5233f9346e4c27e7f2c8a2c3afd4d1ea0d0665bc050aa291dedde70afecd108b · sha256:1594f42901a887e0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.3,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5233f9346e4c27e7f2c8a2c3afd4d1ea0d0665bc050aa291dedde70afecd108b · sha256:1594f42901a887e0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"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:v2:5233f9346e4c27e7f2c8a2c3afd4d1ea0d0665bc050aa291dedde70afecd108b · sha256:1594f42901a887e0… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/nextcloud/deck/commit/afa95d3c507465b9d31af7c88c69b76711ef185a","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/deck/commit/afa95d3c507465b9d31af7c88c69b76711ef185a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5233f9346e4c27e7f2c8a2c3afd4d1ea0d0665bc050aa291dedde70afecd108b · sha256:1594f42901a887e0… · /containers/cna/references/2
{"name":"https://github.com/nextcloud/deck/pull/6671","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/deck/pull/6671"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5233f9346e4c27e7f2c8a2c3afd4d1ea0d0665bc050aa291dedde70afecd108b · sha256:1594f42901a887e0… · /containers/cna/references/1
{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xjvq-xvr7-xpg6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xjvq-xvr7-xpg6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5233f9346e4c27e7f2c8a2c3afd4d1ea0d0665bc050aa291dedde70afecd108b · sha256:1594f42901a887e0… · /containers/cna/references/0
{"name":"https://hackerone.com/reports/2326618","tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/2326618"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5233f9346e4c27e7f2c8a2c3afd4d1ea0d0665bc050aa291dedde70afecd108b · sha256:1594f42901a887e0… · /containers/cna/references/3

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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