CVE-2026-111620

O2OA through 10.0.2-ce Cross-Work Attachment Read via Attachment Download Endpoint

Published Oct 16, 2026 CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
Description
O2OA through 10.0.2-ce contains an authorization bypass vulnerability in x_processplatform_assemble_surface that allows authenticated users to download attachments from other works. ActionDownloadWithWork and ActionDownloadWithWorkStream never verify that the requested attachment id belongs to the referenced work or draft, so any visitable work or owned draft can be supplied. Attackers who know an attachment UUID can request it through jaxrs/attachment/download/{id}/work/{workId} to read documents attached to other users' processes.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared O2oa
O2oa o2oa
Vendors & Products O2oa
O2oa o2oa
Type Values Removed Values Added
Description O2OA through 10.0.2-ce contains an authorization bypass vulnerability in x_processplatform_assemble_surface that allows authenticated users to download attachments from other works. ActionDownloadWithWork and ActionDownloadWithWorkStream never verify that the requested attachment id belongs to the referenced work or draft, so any visitable work or owned draft can be supplied. Attackers who know an attachment UUID can request it through jaxrs/attachment/download/{id}/work/{workId} to read documents attached to other users' processes.
Title O2OA through 10.0.2-ce Cross-Work Attachment Read via Attachment Download Endpoint
First Time appeared Zoneland
Zoneland o2oa
Weaknesses CWE-639
CPEs cpe:2.3:a:zoneland:o2oa:*:*:*:*:*:*:*:*
Vendors & Products Zoneland
Zoneland o2oa
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 19, 2026, 1:02 PM
Reserved
Oct 16, 2026, 2:31 PM
Status
Deferred
Published
Oct 16, 2026, 6:17 PM
Modified
Oct 19, 2026, 1:16 PM