Vulnerability in Wondertrader
CVE-2026-19213
A vulnerability was identified in WonderTrader up to 0.9.9. Affected is the function _undone_qty in the library src/WtCore/TraderAdapter.h of the component Pending Order Handler. The manipulation of the argument getUndoneQty leads to enforcement of behavioral workflow. The attack is possible to be carried out 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 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Wondertrader — versions 0.9.0, 0.9.1, 0.9.2
Weakness classification (CWE)
References
- vuldb.com/vuln/386958 (technical-description, vdb-entry)
- vuldb.com/vuln/386958/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-19213 (third-party-advisory)
- vuldb.com/submit/864900 (third-party-advisory)
- my.feishu.cn/wiki/VbQqwEcrJiYOd0khs0Jchw76nhd (exploit)
Frequently asked questions
- What is CVE-2026-19213?
- CVE-2026-19213 is a medium-severity vulnerability in Wondertrader, classified under CWE-840. CVSS score: 4.3/10. Published 2026-08-07.
- How severe is CVE-2026-19213?
- Medium severity. CVSS v3 base score is 4.3 out of 10.