CVE-2020-5667: Studyplus App for Android v6.3.7 and earlier and Studyplus App for iOS v8.29.0 and earlier use a hard-coded AP

Q: How do I fix CVE-2020-5667?

studyplus: upgrade to newer than 6.3.7; studyplus: upgrade to newer than 8.29.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-5667 being exploited?

CVE-2020-5667 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-5667 affect?

CVE-2020-5667 affects studyplus, studyplus. Severity is medium (CVSS 5.5). Studyplus App for Android v6.3.7 and earlier and Studyplus App for iOS v8.29.0 and earlier use a hard-coded API key for an external service. By exploiting this vulnerability, API key for an external service may be obtained by analyzing data

Q: How urgent is CVE-2020-5667?

Priority 24/100. No elevated risk signals yet.

Routine

MEDIUM 5.5UPGRADEUPGRADE

CVE-2020-5667 is a medium-severity flaw (CVSS 5.5) affecting studyplus, studyplus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Studyplus App for Android v6.3.7 and earlier and Studyplus App for iOS v8.29.0 and earlier use a hard-coded API key for an external service. By exploiting this vulnerability, API key for an external service may be obtained by analyzing data in the app.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-798
Published	2020-11-06
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: wantedlyinc

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

Am I affected?

Timeline

2020-11-06 03:15 UTCPublished CVE record published
2026-06-17 03:22 UTCUpdated Record last modified

wantedlyinc studyplus UPGRADE

Affected: <= 6.3.7

Fixed in: newer than 6.3.7

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 6.3.7 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade studyplus

Note

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

wantedlyinc studyplus UPGRADE

Affected: <= 8.29.0

Fixed in: newer than 8.29.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 8.29.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade studyplus

Note

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

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-2020-5667?

studyplus: upgrade to newer than 6.3.7; studyplus: upgrade to newer than 8.29.0. Exact commands for each OS are on this page.

Is CVE-2020-5667 being exploited?

CVE-2020-5667 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-2020-5667 affect?

CVE-2020-5667 affects studyplus, studyplus. Severity is medium (CVSS 5.5). Studyplus App for Android v6.3.7 and earlier and Studyplus App for iOS v8.29.0 and earlier use a hard-coded API key for an external service. By exploiting this vulnerability, API key for an external service may be obtained by analyzing data

How urgent is CVE-2020-5667?

Priority 24/100. No elevated risk signals yet.

Software pages

Android vulnerabilities · iOS vulnerabilities

References

← Back to latest CVEs