An issue was discovered in halo V1.1.3.
Priority MEDIUM 45CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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
An issue was discovered in halo V1.1.3. A Zip Slip Directory Traversal Vulnerability in the backend,the attacker can overwrite some files, such as ftl files, .bashrc files in the user directory, and finally get the permissions of the operating system.
Why it matters now
EPSS 0.01532 74th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-21522
- 2026-10-03 Alias added: GHSA-gj86-cwgp-gj94
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-2020-21522 · CVE Program
- CVE-2020-21522 · NVD
- FIRST EPSS
- GHSA-gj86-cwgp-gj94 · GitHub Advisory Database · CC BY 4.0
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