JWT Signing Secret Derived from Username and Month Exposes yfexam‑exam v2.0
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | n/a | affected |
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No data available yet.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.416% probability within 30 days)
| Link | Providers |
|---|---|
| https://github.com/fangtang7/CVE/blob/main/yf-exam/JWT.md |
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| Type | Values Removed | Values Added |
|---|---|---|
| Title | JWT Signing Secret Derived from Username and Month Exposes yfexam‑exam v2.0 |
| Type | Values Removed | Values Added |
|---|---|---|
| Title | JWT Signing Secret Derived from Username and Current Month Enables Brute‑Force Extraction | |
| Weaknesses | CWE-327 CWE-798 |
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-330 | |
| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
|---|---|---|
| Title | JWT Signing Secret Derived from Username and Current Month Enables Brute‑Force Extraction | |
| Weaknesses | CWE-327 CWE-798 |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The JWT signing secret in yfexam-exam v2.0 is derived from the username and the current month instead of a random server-side key, making the secret key easily obtainable via a bruteforce attack. | |
| References |
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