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CVE-2025-66515

The Nextcloud Approval app allows approval or disapproval of files in the sidebar. Prior to 1.3.1 and 2.5.0, an authenticated user listed as a requester in a workflow can set another user’s file into the “pending approval” without access to the file by using the numeric file id. This vulnerability is fixed in 1.3.1 and 2.5.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:54d0cb2464a45cbf61152968b0b74fdb9fd1e5b45f409d14d6e095a1bd0a7008
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":">= 2.0.0, < 2.5.0"},{"status":"affected","version":"< 1.3.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0e304266001f139f7dda1db4e20e76de34c0e3778b5a6616617fb30d0307c290 · sha256:63912ec91de0f91c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":2.7,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/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:v2:0e304266001f139f7dda1db4e20e76de34c0e3778b5a6616617fb30d0307c290 · sha256:63912ec91de0f91c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0e304266001f139f7dda1db4e20e76de34c0e3778b5a6616617fb30d0307c290 · sha256:63912ec91de0f91c… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/nextcloud/approval/commit/e30b56b7832255311ac800b7875f44866e88fff4","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/approval/commit/e30b56b7832255311ac800b7875f44866e88fff4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0e304266001f139f7dda1db4e20e76de34c0e3778b5a6616617fb30d0307c290 · sha256:63912ec91de0f91c… · /containers/cna/references/2
{"name":"https://github.com/nextcloud/approval/pull/334","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/approval/pull/334"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0e304266001f139f7dda1db4e20e76de34c0e3778b5a6616617fb30d0307c290 · sha256:63912ec91de0f91c… · /containers/cna/references/1
{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-q26g-fmjq-x5g5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-q26g-fmjq-x5g5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0e304266001f139f7dda1db4e20e76de34c0e3778b5a6616617fb30d0307c290 · sha256:63912ec91de0f91c… · /containers/cna/references/0
{"name":"https://hackerone.com/reports/3338748","tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/3338748"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0e304266001f139f7dda1db4e20e76de34c0e3778b5a6616617fb30d0307c290 · sha256:63912ec91de0f91c… · /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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