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CVE-2026-45267

Nextcloud is an open source content collaboration platform. Prior to version 5.2.6, a missing permissions check allowed users to request reading form submissions of other users. This issue has been patched in version 5.2.6.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:11e18b1faad7261a29aa436332a9dcbfaf1eb34e6ee0532bd7cac08abd9da416
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-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"security-advisories","vendor":"nextcloud","versions":[{"status":"affected","version":"< 5.2.6"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/nextcloud/forms/pull/3269","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/forms/pull/3269"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/references/1
{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r4gh-f8x6-m55f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r4gh-f8x6-m55f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/references/0
{"name":"https://hackerone.com/reports/3628817","tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/3628817"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0306eadfdd5665b68b6c2a468e89df51c8ab4203349aaa2cb5df71d0876236d3 · sha256:bcb82e2f7129aeee… · /containers/cna/references/2

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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