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CVE-2026-22241

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system. The main cause of the issue is that no validation or sanitization of the file's present inside the zip archive. This leads to remote code execution on the web server. Version 4.2 patches the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4ab3f0a8f423ff94193698fabd04c50cd7ab1ffb1bff938a3ad66456948bea78
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"openeclass","vendor":"gunet","versions":[{"status":"affected","version":"< 4.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.3,"baseSeverity":"HIGH","privilegesRequired":"HIGH","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-434","description":"CWE-434: Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9","tags":["x_refsource_MISC"],"url":"https://github.com/gunet/openeclass/commit/3f9d267b79812a4dd708bb1302339e6a5abe67d9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/cna/references/2
{"name":"https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r","tags":["x_refsource_MISC"],"url":"https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/cna/references/1
{"url":"https://github.com/gunet/openeclass/security/advisories/GHSA-gq72-7mwg-424r"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/adp/1/references/0
{"name":"https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/gunet/openeclass/security/advisories/GHSA-rf6j-xgqp-wjxg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/adp/0/references/0
{"url":"https://twelvesec.com/2026/01/16/rce-via-arbitrary-file-upload-at-open-eclass/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ea60d37a121ba0b8f06acc3453d9f166fc57ab78f40fa1f970034fb55309c38b · sha256:99488f0cc2e80469… · /containers/adp/1/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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