CVE-2023-7307 json
Sangfor Behavior Management System XML External Entity Injection
published 2025-08-27 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2023-59775
- cvss
- 8.7
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
Sangfor Behavior Management System (also referred to as DC Management System in Chinese-language documentation) contains an XML external entity (XXE) injection vulnerability in the /src/sangforindex endpoint. A remote unauthenticated attacker can submit crafted XML data containing external entity definitions, leading to potential disclosure of internal files, server-side request forgery (SSRF), or other impacts depending on parser behavior. The vulnerability is due to improper configuration of the XML parser, which allows resolution of external entities without restriction. This product is now integrated into their IAM (Internet Access Management) platform and an affected version range is undefined. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-09-06 UTC.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 14 mo ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- cnblogs.com https://www.cnblogs.com/pursue-security/p/17666126.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Sangfor Technologies Co. Ltd. Sangfor Behavior Management System (DC Management System)
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
-
cnblogs.com
/pursue-security/p/17666126.html
technical-description, exploit
-
support.sangfor.com.cn
/productDocument/read?product_id=22&version_id=329&category_id=261800
product
-
sangfor.com
/blog/cybersecurity/launching-sangfor-iam-12-0-23-manage-risky-shadow-it-right-way
product
-
vulncheck.com
/advisories/sangfor-behavior-management-system-xml-external-entity-injection
third-party-advisory
Sources
- CVE List CVE-2023-7307
- NVD CVE-2023-7307
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