Vulnerability in Mfscripts Yetishare
CVE-2019-19735
class.userpeer.php in MFScripts YetiShare 3.5.2 through 4.5.3 uses an insecure method of creating password reset hashes (based only on microtime), which allows an attacker to guess the hash and set the password within a few hours by bruteforcing.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.008 (53.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- medium.com/@jra8908/yetishare-3-5-2-4-5-3-multiple-vulnerabilities-2d01d0cd7459
- github.com/jra89/CVE-2019-19735 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19735?
- CVE-2019-19735 is a critical-severity vulnerability in Mfscripts Yetishare, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 9.1/10. Published 2019-12-30.
- How severe is CVE-2019-19735?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2019-19735 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.