taoofagi easegen-admin up to 8f87936ac774065b92fb20aab55b274a6ea76433 Pdf2MdUtil.java recognizeMarkdown fileUrl path traversal

Summaryinfo

A vulnerability has been found in taoofagi easegen-admin up to 8f87936ac774065b92fb20aab55b274a6ea76433 and classified as critical. The affected element is the function recognizeMarkdown of the file yudao-module-digitalcourse/yudao-module-digitalcourse-biz/src/main/java/cn/iocoder/yudao/module/digitalcourse/util/Pdf2MdUtil.java. Performing a manipulation of the argument fileUrl results in path traversal. This vulnerability is identified as CVE-2026-4285. The attack can be initiated remotely. Additionally, an exploit exists. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as problematic, was found in taoofagi easegen-admin up to 8f87936ac774065b92fb20aab55b274a6ea76433. This affects the function recognizeMarkdown of the file yudao-module-digitalcourse/yudao-module-digitalcourse-biz/src/main/java/cn/iocoder/yudao/module/digitalcourse/util/Pdf2MdUtil.java. The manipulation of the argument fileUrl with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality.

It is possible to read the advisory at fx4tqqfvdw4.feishu.cn. This vulnerability is uniquely identified as CVE-2026-4285. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation needs additional levels of successful authentication. Technical details and a public exploit are known. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The exploit is shared for download at fx4tqqfvdw4.feishu.cn. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202603-3154) and EUVD (EUVD-2026-12527). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• taoofagi

Name

• easegen-admin

Version

• 8f87936ac774065b92fb20aab55b274a6ea76433

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #771950: taoofagi easegen-admin 2.3.0 Path Traversal (by xcxr)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion