Security readout for executives and security teams
Plain-English summary
CVE-2026-0683 affects the WordPress SupportCandy helpdesk plugin through version 3.4.4. A logged-in low-privilege user, such as a subscriber or customer, may be able to read sensitive database information through a vulnerable ticket filter. This is not listed as actively exploited in the provided sources.
Executive priority
Treat as a prompt remediation item for WordPress sites using SupportCandy with customer logins. The business risk is potential exposure of sensitive database content by authenticated users, but current sources do not support emergency active-exploitation handling.
Technical view
The flaw is SQL injection in the Number-type custom field filter when the equals operator is used. The source describes insufficient escaping of a user-supplied operand and insufficient query preparation. CVSS 3.1 is 6.5: network-accessible, low complexity, low privileges, no user interaction, high confidentiality impact.
Likely exposure
Exposure is likely for WordPress sites running SupportCandy Helpdesk versions up to and including 3.4.4, especially where customers or subscribers can authenticate and use ticket filtering features.
Exploitation context
An attacker needs an authenticated account with Subscriber-level access or higher. The reported impact is database information disclosure, not code execution, data modification, or service disruption. No KEV listing or cited source indicates active exploitation.
Researcher notes
Key review areas are the Number custom field filter, equals operator handling, and SQL query preparation in the referenced SupportCandy files. The WordPress changeset is relevant for understanding the vendor-side correction, but the provided bundle does not name a specific fixed release.
Mitigation direction
- Identify all WordPress sites running the SupportCandy plugin.
- Upgrade SupportCandy to a version newer than 3.4.4 if available.
- If no update is available, check vendor and WordPress plugin guidance.
- Restrict untrusted authenticated access to ticket filtering features where feasible.
- Review whether open registration creates unnecessary low-privilege attacker access.
Validation and detection
- Confirm installed SupportCandy versions across WordPress assets.
- Verify whether any instance is version 3.4.4 or earlier.
- Review roles allowed to access SupportCandy ticket filters.
- Check application logs for unusual authenticated ticket-filter activity.
- Confirm remediation by verifying the plugin version after update.
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-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-2026-0683 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
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a7856d0f-bc7d-436c-968c-631fd6a686ab?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.4.4/includes/admin/tickets/class-wpsc-ticket-list.php#L1265CVE reference
- https://plugins.trac.wordpress.org/browser/supportcandy/tags/3.4.4/includes/custom-field-types/class-wpsc-cf-number.php#L371CVE reference
- https://plugins.trac.wordpress.org/changeset/3448376/CVE reference
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 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.