CVE-2017-0894

mediumpriority · track · 17OT risk · elevatedEPSS 0.012 · 67 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.17% (67th) EPSS

CVSS 4.3 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

Nextcloud Server before 11.0.3 is vulnerable to disclosure of valid share tokens for public calendars due to a logical error. Thus granting an attacker potentially access to publicly shared calendars without knowing the share token.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimaryCWE-285US

affected products (2)

Products and version ranges known to be affected.

nextcloud Nextcloud Server≤ before 11.0.3enisa_euvdEU
nextcloud nextcloud server< 11.0.3nvdUScpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2017-05-08modified 2026-06-17

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+5023 more

references (6)

External citations — patches, advisories, analysis.

https://hackerone.com/reports/218876 cnnvd
https://nextcloud.com/security/advisory/?id=nc-sa-2017-011 cnnvd
https://hackerone.com/reports/218876 enisa_euvd
https://nextcloud.com/security/advisory/?id=nc-sa-2017-011 enisa_euvd
https://hackerone.com/reports/218876Third Party Advisorynvd
https://nextcloud.com/security/advisory/?id=nc-sa-2017-011Broken LinkPatchVendor Advisorynvd

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