CVE-2023-7335 — EduSoho versions prior to 22

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 serv

01What is this vulnerability?

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…

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2026-01-22T17:15:53.117
• Last modified: 2026-07-15T02:17:08.690

09References

• blog.csdn.net — https://blog.csdn.net/qq_41904294/article/details/135007351
• cn-sec.com — https://cn-sec.com/archives/2451582.html
• github.com — https://github.com/edusoho/edusoho/releases/tag/v22.4.7
• github.com — https://github.com/gobysec/GobyVuls/blob/master/CNVD-2023-03903.md
• github.com — https://github.com/zeroChen00/exp-poc/blob/main/EduSoho%E6%95%99%E5%9F%B9%E7%B3%…
• www.cnvd.org.cn — https://www.cnvd.org.cn/flaw/show/CNVD-2023-03903
• www.edusoho.com — https://www.edusoho.com/
• www.vulncheck.com — https://www.vulncheck.com/advisories/edusoho-arbitrary-file-read-via-classroom-c…