VulnerabilityModified
CVE-2023-25403
CleverStupidDog yf-exam v 1.8.0 is vulnerable to Authentication Bypass.
HIGH 7.5EPSS 0.65%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
CleverStupidDog yf-exam v 1.8.0 is vulnerable to Authentication Bypass. The program uses a fixed JWT key, and the stored key uses username format characters. Any user who logged in within 24 hours. A token can be forged with his username to bypass authentication.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.65% probability · 49th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-639
- Affected
- yf-exam project/yf-exam
- Source
- cve@mitre.org
References
- https://github.com/CleverStupidDog/yf-exam/issues/2Exploit, Issue Tracking, Third Party Advisory
- https://github.com/Fw-fW-fw/UPDATE-CVE/blob/main/CVE-2023-25403Third Party Advisory
- https://github.com/CleverStupidDog/yf-exam/issues/2Exploit, Issue Tracking, Third Party Advisory
- https://github.com/Fw-fW-fw/UPDATE-CVE/blob/main/CVE-2023-25403Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.