CVE-2019-20062: MFScripts YetiShare v3.5.2 through v4.5.4 might allow an attacker to reset a password by using a leaked hash (

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2019-20062 is a critical-severity flaw (CVSS 9.8) affecting yetishare. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MFScripts YetiShare v3.5.2 through v4.5.4 might allow an attacker to reset a password by using a leaked hash (the hash never expires until used).

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-287
Published	2020-02-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mfscripts

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-02-10 13:15 UTCPublished CVE record published
2026-06-17 02:29 UTCUpdated Record last modified

mfscripts yetishare UPGRADE

Affected: >= 3.5.2 and <= 4.5.4

Fixed in: newer than 4.5.4

Safe to downgrade to: a release before 3.5.2

1. Check installed version

apt-cache policy yetishare || rpm -q yetishare || yetishare --version

2. UPGRADE to newer than 4.5.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yetishare

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yetishare

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 3.5.2 (Debian / Ubuntu)

apt-cache madison yetishare sudo apt install yetishare=<VERSION_BEFORE_3.5.2> sudo apt-mark hold yetishare

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list yetishare sudo dnf downgrade yetishare-<VERSION_BEFORE_3.5.2> sudo dnf versionlock add yetishare

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-20062?

yetishare: upgrade to newer than 4.5.4. Exact commands for each OS are on this page.

Is CVE-2019-20062 being exploited?

CVE-2019-20062 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-20062 affect?

CVE-2019-20062 affects yetishare. Severity is critical (CVSS 9.8). MFScripts YetiShare v3.5.2 through v4.5.4 might allow an attacker to reset a password by using a leaked hash (the hash never expires until used).

How urgent is CVE-2019-20062?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2019-20061 HIGH 7.5 UPGRADE The user-introduction email in MFScripts YetiShare v3.5.2 through v4.5.4 may leak the (system-picked) password
CVE-2019-20060 HIGH 7.5 UPGRADE MFScripts YetiShare v3.5.2 through v4.5.4 places sensitive information in the Referer header
CVE-2019-20059 HIGH 8.8 UPGRADE payment_manage.ajax.php and various *_manage.ajax.php in MFScripts YetiShare 3.5.2 through 4.5.4 directly inse
CVE-2019-19806 MEDIUM 5.3 UPGRADE _account_forgot_password.ajax.php in MFScripts YetiShare 3.5.2 through 4.5.3 displays a message indicating whe
CVE-2019-19805 MEDIUM 5.3 UPGRADE _account_forgot_password.ajax.php in MFScripts YetiShare 3.5.2 through 4.5.3 takes a different amount of time

References

← Back to latest CVEs