Inefficient URL schema validation
Priority LOW 26CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
URL validation scheme receives input from a user and then parses it to identify its various components. The validation scheme can ensure that all URL components comply with internet standards.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00556 46th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
No affected products listed by the sources yet.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-29456
- 2026-10-03 Alias added: GHSA-q598-p9hw-59vj
References
More Zabbix Frontend vulnerabilities
- TI-2022-21297 X-Forwarded-For header is active by default causes access to Zabbix sites in maintenance mode CVSS 3.1CRITICAL 9.8
- TI-2023-15994 Leak of zbx_session cookie when using a scheduled report that includes a dashboard with a URL widget. CVSS 3.1CRITICAL 9.6
- TI-2025-20084 Frontend arbitrary file read in oauth.authorize action CVSS 4.0MEDIUM 6.8
- TI-2023-13836 Insufficient validation of Action form input fields CVSS 3.1MEDIUM 6.3
- TI-2023-13834 Reflected XSS in several fields of graph form CVSS 3.1MEDIUM 6.1
- TI-2025-31622 Frontend DoS vulnerability due to asymmetric resource consumption CVSS 4.0MEDIUM 6.0
Sources
- CVE-2023-29456 · CVE Program
- CVE-2023-29456 · NVD
- FIRST EPSS
- GHSA-q598-p9hw-59vj · GitHub Advisory Database · CC BY 4.0
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