CVE-2026-3813 Details
Description
A vulnerability was identified in opencc JFlow up to 5badc00db382d7cb82dad231e6a866b18e0addfe. Affected by this vulnerability is the function Calculate of the file src/main/java/bp/wf/httphandler/WF_CCForm.java. Such manipulation leads to injection. The attack may be performed from remote. The exploit is publicly available and might be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.
A remote code execution vulnerability exists in OpenCC JFlow versions prior to 5badc00db382d7cb82dad231e6a866b18e0addfe. The issue arises in the Calculate() method of the file WF_CCForm.java, where user-inputted formulas are not properly validated. This flaw allows attackers to inject operating system command separators into the calculation interface, leading to the execution of arbitrary commands on the server with high privileges.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 10, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gitee.com/opencc/JFlow/ | [email protected] | Product |
| https://gitee.com/opencc/JFlow/issues/IE8R2F | [email protected] | ExploitIssue TrackingVendor Advisory |
| https://vuldb.com/?ctiid.349779 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.349779 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.769112 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
| CWE-707 | Improper Neutralization | [email protected] |
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| opencc jflow | All versions |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 10, 2026 | Initial Analysis | [email protected] |
| Mar 9, 2026 | New CVE Received | [email protected] |