# CVE-2023-7335: EduSoho < 22.4.7 Arbitrary File Read via classroom-course-statistics

Status: published. Published: 2026-01-22. Updated: 2026-11-08.

EduSoho versions prior to 22.4.7 contain an arbitrary file read vulnerability in the classroom-course-statistics export functionality. A remote, unauthenticated attacker can supply crafted path traversal sequences in the fileNames[] parameter to read arbitrary files from the server filesystem, including application configuration files such as config/parameters.yml that may contain secrets and database credentials. Exploitation evidence was observed by the Shadowserver Foundation on 2026-01-19 (UTC).

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/edusoho/edusoho/releases/tag/v22.4.7

## Affected products and versions

- Hangzhou Kuozhi Network Technology Co., Ltd. / EduSoho (edusoho/edusoho): ≥ 0; < 22.4.7 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.7 (high); 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; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.76% as of 2026-11-08; percentile 55.41%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-22

## Exploit evidence

- exploit: https://cn-sec.com/archives/2451582.html (CNA: VulnCheck)
- exploit: https://blog.csdn.net/qq_41904294/article/details/135007351 (CNA: VulnCheck)
- exploit: https://github.com/zeroChen00/exp-poc/blob/main/EduSoho%E6%95%99%E5%9F%B9%E7%B3%BB%E7%BB%9Fclassropm-course-statistics%E5%AD%98%E5%9C%A8%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E.md (CNA: VulnCheck)
- exploit: https://github.com/gobysec/GobyVuls/blob/master/CNVD-2023-03903.md (CNA: VulnCheck)

## References

- https://www.edusoho.com/ (CNA: VulnCheck; product)

- https://github.com/edusoho/edusoho/releases/tag/v22.4.7 (CNA: VulnCheck; release-notes, patch)

- https://cn-sec.com/archives/2451582.html (CNA: VulnCheck; technical-description, exploit)

- https://blog.csdn.net/qq_41904294/article/details/135007351 (CNA: VulnCheck; technical-description, exploit)

- https://github.com/zeroChen00/exp-poc/blob/main/EduSoho%E6%95%99%E5%9F%B9%E7%B3%BB%E7%BB%9Fclassropm-course-statistics%E5%AD%98%E5%9C%A8%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E.md (CNA: VulnCheck; exploit)

- https://github.com/gobysec/GobyVuls/blob/master/CNVD-2023-03903.md (CNA: VulnCheck; exploit)

- https://www.cnvd.org.cn/flaw/show/CNVD-2023-03903 (CNA: VulnCheck; government-resource, vdb-entry)

- https://www.vulncheck.com/advisories/edusoho-arbitrary-file-read-via-classroom-course-statistics (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2023-7335; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2023-7335; retrieved 2026-11-08; source updated Not reported

Revision: 33be8738aa0b22631ecd9c571a07f4c848a77f3823a1f62d17f6235616855cf6

Canonical: https://y2.dev/cve/CVE-2023-7335

## Agent and API access

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- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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