Security readout for executives and security teams
Plain-English summary
CVE-2026-0580 is a cross-site scripting issue in SourceCodester API Key Manager App 1.0, tied to the Import Key Handler. It could let a logged-in attacker cause script execution in another user’s browser. The published severity is medium, with limited integrity impact and no stated confidentiality or availability impact.
Executive priority
Treat as a moderate-priority web application issue. Prioritize if this app manages sensitive API keys, is internet-accessible, or has many low-privileged users. There is no confirmed active exploitation in the provided sources.
Technical view
Public records describe XSS affecting an unspecified function in the Import Key Handler of SourceCodester API Key Manager App 1.0. CVSS 4.0 score is 5.1: network-accessible, low complexity, low privileges required, passive user interaction, and low vulnerable-system integrity impact. CWE-79 and CWE-94 are listed.
Likely exposure
Exposure is limited to organizations running SourceCodester API Key Manager App version 1.0, especially where the Import Key feature is reachable by low-privileged authenticated users. No other versions or products are identified in the provided sources.
Exploitation context
The sources state the attack can be initiated remotely and CVSS includes proof-of-concept exploit maturity. CISA KEV status is false in the provided bundle, and no source here confirms active exploitation in the wild.
Researcher notes
Evidence is sparse: the affected function is described as unknown, and no patch version is named. The CVSS vector is the strongest exposure signal. Avoid assuming stored versus reflected XSS without validating the Import Key data flow.
Mitigation direction
- Check SourceCodester and VulDB for vendor guidance or updates.
- Restrict Import Key access to trusted, necessary users only.
- Disable or limit the import feature if not operationally required.
- If maintaining the code, validate input and encode output around imported key data.
- Monitor application logs for suspicious import activity.
Validation and detection
- Inventory instances of SourceCodester API Key Manager App.
- Confirm whether version 1.0 is deployed.
- Verify whether the Import Key Handler is enabled and reachable.
- Review role permissions for users allowed to import keys.
- Assess non-production behavior with safe, authorized XSS validation methods.
- Review source code for unsafe rendering of imported data.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. 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 lookupCVE-2026-0580 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
- 5.1 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Source materials
- CVE List V5 sourceCVE List V5
- VDB-339472 | SourceCodester API Key Manager App Import Key cross site scriptingCVE reference · vdb-entry, technical-description
- VDB-339472 | CTI Indicators (IOB, IOC, TTP)CVE reference · signature, permissions-required
- Submit #731146 | SourceCodester API Key Manager App Using HTML, CSS and JavaScript with Source Code 0 Cross Site ScriptingCVE reference · third-party-advisory
- Submit #731290 | SourceCodester API Key Manager App Using HTML, CSS and JavaScript with Source Code 0 Basic Cross Site Scripting (Duplicate)CVE reference · third-party-advisory
- https://www.sourcecodester.com/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 Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.