Security readout for executives and security teams
Plain-English summary
CVE-2026-0591 is a SQL injection in the cart update feature of code-projects Online Product Reservation System 1.0. A logged-in remote user may manipulate cart item parameters to affect database queries. Public proof-of-concept material is referenced, but there is no KEV listing or confirmed active exploitation in the provided sources.
Executive priority
Treat as a moderate priority. The issue affects a specific application and requires authentication, but public exploit material increases operational risk. Prioritize validation if the application is internet-facing or handles sensitive customer, order, or payment-adjacent data.
Technical view
The issue affects /app/checkout/update.php in the Cart Update Handler. Manipulation of id or qty can lead to SQL injection. The CVSS v2 score is 6.5 with network access, low complexity, and authentication required. Sources list CWE-89 and CWE-74. The vulnerable function is not identified, and no CPEs are provided.
Likely exposure
Exposure is likely limited to organizations running code-projects Online Product Reservation System version 1.0, especially internet-facing deployments with user login enabled. The sources do not identify other affected versions or products.
Exploitation context
Remote exploitation is described as possible, but authentication is required. Public exploit or proof-of-concept material is referenced by VulDB and GitHub. No provided source confirms active exploitation in the wild.
Researcher notes
Evidence is centered on VulDB and a public GitHub write-up. The CVE description says the affected function is unknown. Patch status is unclear despite reference tags, so avoid assuming an official vendor fix. Validate against deployed source code and vendor guidance.
Mitigation direction
- Identify whether Online Product Reservation System 1.0 is deployed.
- Check code-projects and linked advisory sources for vendor guidance or updates.
- Review /app/checkout/update.php for unsafe id and qty SQL handling.
- Use parameterized queries and server-side validation for cart update inputs.
- Restrict exposure of the application if it is not required externally.
Validation and detection
- Inventory applications matching code-projects Online Product Reservation System 1.0.
- Confirm whether /app/checkout/update.php exists in deployed code.
- Review cart update handling for direct SQL use of id or qty.
- Check application logs for unusual authenticated cart update activity.
- Verify remediation through safe code review or authorized testing.
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-2026-0591 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 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:S/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:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR86.4Primary CVE scoreVulnerability scoring details
Base CVSS 2.0 score
6.5MediumVector: AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
Source materials
- CVE List V5 sourceCVE List V5
- VDB-339501 | code-projects Online Product Reservation System Cart Update update.php sql injectionCVE reference · vdb-entry, technical-description
- VDB-339501 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference · signature, permissions-required
- Submit #731129 | code-projects Online Product Reservation System V1.0 SQL InjectionCVE reference · third-party-advisory
- https://github.com/foeCat/CVE/blob/main/OnlineProductReservation_PHP/sqli_checkout_update.php.mdCVE reference · patch, exploit
- https://code-projects.org/CVE reference · 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.