Security readout for executives and security teams
Plain-English summary
CVE-2026-1121 is a remotely reachable SQL injection in Yonyou KSOA 9.0. An attacker could manipulate an HTTP GET parameter to affect the backend database. Public exploit information is reported, but the provided sources do not show confirmed active exploitation or a vendor fix.
Executive priority
Treat this as a high-priority exposure review if Yonyou KSOA 9.0 is in use. Public exploit availability and unauthenticated remote reachability raise urgency, even without confirmed active exploitation. Focus first on internet-facing systems and business-critical deployments.
Technical view
The issue affects /worksheet/del_workplan.jsp in the HTTP GET parameter handler. Manipulation of the ID argument can cause SQL injection. The CVSS v2 score is 7.5 with network access, low complexity, and no authentication required. Listed weaknesses include CWE-89 and CWE-74.
Likely exposure
Organizations running Yonyou KSOA 9.0 are potentially exposed, especially if the application is reachable from untrusted networks. The affected CPE in the source bundle is broad, but the described vulnerable version is KSOA 9.0.
Exploitation context
The sources state that exploit details have been made public and could be used. KEV is false, and no cited source confirms active exploitation. Vendor contact reportedly received no response, so official remediation status is unclear from the provided evidence.
Researcher notes
Evidence is limited to the CVE/source bundle and VulDB/GitHub references. The affected function is unspecified, and vendor remediation is not documented. Avoid assuming exploit maturity beyond public availability. Validate exposure safely through inventory, configuration review, and log analysis rather than offensive testing.
Mitigation direction
- Identify all Yonyou KSOA 9.0 deployments and owners.
- Check Yonyou advisories or support channels for official fixes.
- Restrict KSOA access to trusted networks or VPN users.
- Apply compensating controls for suspicious ID parameter patterns.
- Monitor database and web logs for abnormal del_workplan.jsp requests.
- Prioritize upgrade or replacement if no vendor fix exists.
Validation and detection
- Confirm whether KSOA 9.0 is deployed in production or internet-facing environments.
- Check whether /worksheet/del_workplan.jsp is reachable by unauthenticated users.
- Review access logs for unusual requests targeting del_workplan.jsp and the ID parameter.
- Verify whether any vendor patch, hotfix, or configuration guidance is available.
- Document compensating controls and retest exposure after changes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-74: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-1121 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR106.4Primary CVE scoreVulnerability scoring details
Base CVSS 2.0 score
7.5HighVector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Source materials
- CVE List V5 sourceCVE List V5
- VDB-341713 | Yonyou KSOA HTTP GET Parameter del_workplan.jsp sql injectionCVE reference · vdb-entry, technical-description
- VDB-341713 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference · signature, permissions-required
- Submit #734548 | Yonyou KSOA v9.0 SQL InjectionCVE reference · third-party-advisory
- https://github.com/LX-66-LX/cve/issues/7CVE reference · exploit, issue-tracking
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.