Halo before 1.2.0-beta.1 allows Server Side Template Injection (SSTI) because…
Priority LOW 35CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Halo before 1.2.0-beta.1 allows Server Side Template Injection (SSTI) because TemplateClassResolver.SAFER_RESOLVER is not used in the FreeMarker configuration.
Why it matters now
EPSS 0.01512 74th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:halo:halo:*:*:*:*:*:*:*:* | up to 1.1.1 | Vulnerable | halo-dev |
| cpe:2.3:a:halo:halo:1.1.3:beta1:*:*:*:*:*:* | 1.1.3 beta1 | Vulnerable | halo-dev |
| cpe:2.3:a:halo:halo:1.1.3:beta2:*:*:*:*:*:* | 1.1.3 beta2 | Vulnerable | halo-dev |
| cpe:2.3:a:halo:halo:1.2.0:beta1:*:*:*:*:*:* | 1.2.0 beta1 | Vulnerable | halo-dev |
- cpe:2.3:a:halo:halo:*:*:*:*:*:*:*:* Versions up to 1.1.1 Vulnerable ·halo-dev
- cpe:2.3:a:halo:halo:1.1.3:beta1:*:*:*:*:*:* Versions 1.1.3 beta1 Vulnerable ·halo-dev
- cpe:2.3:a:halo:halo:1.1.3:beta2:*:*:*:*:*:* Versions 1.1.3 beta2 Vulnerable ·halo-dev
- cpe:2.3:a:halo:halo:1.2.0:beta1:*:*:*:*:*:* Versions 1.2.0 beta1 Vulnerable ·halo-dev
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-19999
- 2026-10-03 Alias added: GHSA-x8hw-99fp-gmh6
References
More halo-dev Halo vulnerabilities
- TI-2025-28627 halo v2.20.17 and before is vulnerable to server-side request forgery (SSRF) in… CVSS 3.1CRITICAL 9.1
- TI-2025-43155 An issue in halo v.2.22.4 and before allows a remote attacker to cause a denial of… CVSS 3.1HIGH 7.5
- TI-2024-29387 Halo's editor has a stored XSS vulnerability CVSS 3.1MEDIUM 6.4
- TI-2024-29386 Halo's editor has a stored Cross-Site Scripting vulnerability CVSS 3.1MEDIUM 6.3
- TI-2022-14503 Halo CMS v1.5.3 was discovered to contain an arbitrary file upload vulnerability via the… CVSS 3.1CRITICAL 9.8
- TI-2022-14504 Halo CMS v1.5.3 was discovered to contain a Server-Side Request Forgery (SSRF) via the… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-19999 · CVE Program
- CVE-2019-19999 · NVD
- FIRST EPSS
- GHSA-x8hw-99fp-gmh6 · GitHub Advisory Database · CC BY 4.0
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