XXE in Zoneland O2oa
CVE-2026-2074
A vulnerability was identified in O2OA up to 9.0.0. This impacts an unknown function of the file /x_program_center/jaxrs/mpweixin/check of the component HTTP POST Request Handler. The manipulation leads to xml external entity reference. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (18.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Zoneland O2oa
- O2oa — versions 9.0
Weakness classification (CWE)
References
- vuldb.com/ (VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/SourByte05/SourByte-Lab/issues/7 (issue-tracking, Exploit, Third Party Advisory, exploit, Mitigation, Issue Tracking)
Frequently asked questions
- What is CVE-2026-2074?
- CVE-2026-2074 is a medium-severity vulnerability in Zoneland O2oa, classified under Externally Controlled Reference to a Resource in Another Sphere. CVSS score: 6.3/10. Published 2026-02-07.
- How severe is CVE-2026-2074?
- Medium severity. CVSS v3 base score is 6.3 out of 10.