CVE-2021-36172 json
An improper restriction of XML external entity reference vulnerability in the parser of XML responses of FortiPortal before 6.0.6 may allow…
published 2021-11-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-22793
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
An improper restriction of XML external entity reference vulnerability in the parser of XML responses of FortiPortal before 6.0.6 may allow an attacker who controls the producer of XML reports consumed by FortiPortal to trigger a denial of service or read arbitrary files from the underlying file system by means of specifically crafted XML documents.
Patch / fix
- fortinet fortiportal 5.3.7, 6.0.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:W/RC:C |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:N/A:P |
Affected products
- Fortinet Fortinet FortiPortal
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
- Technology feeds
References
-
fortiguard.com
/advisory/FG-IR-21-104
vendor-advisory
Sources
- CVE List CVE-2021-36172
- NVD CVE-2021-36172
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