Horilla: Open Redirect via Unvalidated `next` Parameter in Notification Endpoints
Priority MEDIUM 55CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.
Summary
Horilla is an HR and CRM software. In 1.5.0, the notification endpoints trust the unvalidated next parameter and redirect users to arbitrary external URLs. This allows an attacker to turn trusted application links into phishing or social-engineering redirects.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00335 27th 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
- Poc
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| horilla-opensource | horilla-hr | up to 1.5.0 | — | No fix listed | CNA |
- horilla-hr Vendorhorilla-opensource Affected up to 1.5.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41513
References
More horilla-opensource vulnerabilities
- TI-2025-37271 Horrila Stored XSS Vulnerability via Ticket Comment section CVSS 3.1CRITICAL 9.9
- TI-2026-63868 Horilla: Authenticated RCE in Horilla List-View Export CVSS 3.1HIGH 8.8
- TI-2026-50095 Horilla: Reflected Cross-Site Scripting (XSS) in Employee Filter View CVSS 4.0HIGH 8.5
- TI-2026-29522 Horilla: Unauthorized Document Overwrite via File Upload Endpoint CVSS 4.0HIGH 8.6
- TI-2025-31025 Horilla Unauthorized Access to Candidate Resume Files Due to Broken Access Control CVSS 3.1HIGH 7.5
- TI-2026-29521 Horilla: Insecure Direct Object Reference at `/employee/view-file/<int:id> CVSS 4.0HIGH 7.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences