Analyst readout for executives and security teams
Plain-English summary
CVE-2026-9526 is a remote SQL injection in itsourcecode Electronic Judging System 1.0. A public exploit is reported, so exposed deployments should be treated as urgent. Sources do not show CISA KEV listing, confirmed active exploitation, or a vendor patch.
Executive priority
Prioritize within the current remediation cycle for any exposed deployment. Escalate to emergency handling if the system is internet-facing, stores sensitive participant data, or supports active competitions.
Technical view
The issue affects /admin/edit_team.php where the num_id argument can be manipulated to cause SQL injection. The CVSS 2.0 vector is AV:N/AC:L/Au:N with partial confidentiality, integrity, and availability impact. CWE mappings include CWE-74 and CWE-89.
Likely exposure
Exposure is likely limited to organizations running itsourcecode Electronic Judging System 1.0, especially internet-reachable instances. The vulnerable path is under /admin, but the CVSS vector reports no authentication required. Source evidence does not identify other versions or derived products.
Exploitation context
The source bundle states that an exploit has been made public and could be used. KEV is false, and no cited source confirms active exploitation in the wild. Treat this as elevated risk because remote unauthenticated SQL injection is commonly abused when reachable.
Researcher notes
Evidence is strongest for affected product, version, vulnerable endpoint, parameter, and public proof-of-concept availability. Evidence is incomplete for patch status, exploit maturity beyond public availability, and active exploitation. Avoid assuming broader product impact without additional vendor confirmation.
Mitigation direction
- Check vendor and CVE guidance for any patch or official workaround.
- Restrict external access to the Electronic Judging System admin area.
- Apply parameterized queries and strict numeric validation for num_id if maintaining the code.
- Monitor requests to /admin/edit_team.php for suspicious num_id activity.
- Back up affected databases before remediation work.
Validation and detection
- Inventory all Electronic Judging System deployments and confirm version 1.0 usage.
- Determine whether /admin/edit_team.php is reachable from untrusted networks.
- Review web and database logs for abnormal edit_team.php requests.
- Confirm num_id handling uses safe parameter binding or strict server-side validation.
- Track VulDB, CVE, and vendor pages for updated remediation details.
Public sources used
Based on public source material and reviewed before publication.
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-2026-9526 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.
SSVC decision data
CVSS vector scores
4 official scoresWe 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:UR 10 6.4 VulDB CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R 3.9 3.4 VulDB CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R 3.9 3.4 VulDB CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P — — VulDB Vulnerability scoring details
Base CVSS 4.0 score
6.9 MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Base CVSS 3.1 score
7.3 HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Base CVSS 3.0 score
7.3 HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Base CVSS 2.0 score
7.5 HighVector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timeline VulDB
Advisory disclosed
- Source timeline VulDB
VulDB entry created
- CVE reserved CVE Program
The CVE ID was reserved by the assigning CNA.
- Source timeline VulDB
VulDB entry last update
- CVE published CVE Program
The CVE record was published.
- CVE updated CVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 source CVE List V5
- VDB-365545 | itsourcecode Electronic Judging System edit_team.php sql injection CVE reference, VulDB · vdb-entry, technical-description
- VDB-365545 | CTI Indicators (IOB, IOC, TTP, IOA) CVE reference, VulDB · signature, permissions-required
- Submit #814714 | itsourcecode Electronic Judging System V1.0 SQL injection CVE reference, VulDB · third-party-advisory
- https://github.com/i-QvQ-i/first-OvO/issues/2 CVE reference, VulDB · exploit, issue-tracking
- https://itsourcecode.com/ CVE reference, VulDB · product
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.