Security readout for executives and security teams
Plain-English summary
EduSoho servers before 22.4.7 may let an unauthenticated internet user read files from the server. The main business risk is exposure of configuration secrets and database credentials, which can turn a file-read flaw into broader compromise.
Executive priority
Treat this as urgent for any public EduSoho deployment. The flaw is unauthenticated, confidentiality-focused, and tied to reported exploitation evidence, so delaying remediation risks credential exposure and follow-on intrusion.
Technical view
The classroom-course-statistics export function accepts user-controlled fileNames[] values without sufficient path traversal protection, enabling arbitrary server-side file reads. The CVSS 4.0 score is 8.7, with network access, low complexity, no privileges, no user interaction, and high confidentiality impact.
Likely exposure
Organizations running internet-accessible EduSoho instances before 22.4.7 are the primary concern. Exposure should be confirmed by asset inventory and version checks because the affected metadata in the bundle is sparse.
Exploitation context
The bundle reports exploitation evidence observed by Shadowserver on 2026-01-19 UTC. The CVE is not listed as KEV. Public references include technical writeups and exploit-tagged material, increasing operational risk.
Researcher notes
Do not rely solely on the affected CPE data; it appears limited. Focus validation on EduSoho version, route exposure, export behavior, and evidence of sensitive file access. Avoid reproducing public exploit procedures in production.
Mitigation direction
- Upgrade EduSoho to version 22.4.7 or later.
- Review EduSoho vendor guidance for any additional hardening steps.
- Rotate application secrets and database credentials if exposure is suspected.
- Restrict public access to EduSoho administrative or export functions where feasible.
- Review logs for suspicious classroom-course-statistics export requests.
Validation and detection
- Inventory EduSoho deployments and identify versions below 22.4.7.
- Confirm whether classroom-course-statistics export functionality is internet-accessible.
- Check server logs for anomalous fileNames[] traversal patterns.
- Review whether sensitive configuration files were accessed.
- Verify patched systems no longer expose the vulnerable behavior.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-7335 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: 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 and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
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——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: 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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.edusoho.com/CVE reference, VulnCheck · product
- https://github.com/edusoho/edusoho/releases/tag/v22.4.7CVE reference, VulnCheck · release-notes, patch
- https://cn-sec.com/archives/2451582.htmlCVE reference, VulnCheck · technical-description, exploit
- https://blog.csdn.net/qq_41904294/article/details/135007351CVE reference, 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.mdCVE reference, VulnCheck · exploit
- https://github.com/gobysec/GobyVuls/blob/master/CNVD-2023-03903.mdCVE reference, VulnCheck · exploit
- https://www.cnvd.org.cn/flaw/show/CNVD-2023-03903CVE reference, VulnCheck · government-resource, vdb-entry
- https://www.vulncheck.com/advisories/edusoho-arbitrary-file-read-via-classroom-course-statisticsCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.