CVE-2021-38095: The REST API in Planview Spigit 4.5.3 allows remote unauthenticated attackers to query sensitive user accounts

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HIGH 7.5REMOTEDOWNGRADE

CVE-2021-38095 is a high-severity flaw (CVSS 7.5) affecting spigit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The REST API in Planview Spigit 4.5.3 allows remote unauthenticated attackers to query sensitive user accounts data, as demonstrated by an api/v1/users/1 request.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Published	2021-08-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: planview

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

Am I affected?

Timeline

2021-08-05 13:15 UTCPublished CVE record published
2026-06-17 04:01 UTCUpdated Record last modified

planview spigit DOWNGRADE

Affected: 4.5.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.5.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.5.3 (Debian / Ubuntu)

apt-cache madison spigit sudo apt install spigit=<VERSION_BEFORE_4.5.3> sudo apt-mark hold spigit

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list spigit sudo dnf downgrade spigit-<VERSION_BEFORE_4.5.3> sudo dnf versionlock add spigit

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-2021-38095?

spigit: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-38095 being exploited?

CVE-2021-38095 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-2021-38095 affect?

CVE-2021-38095 affects spigit. Severity is high (CVSS 7.5). The REST API in Planview Spigit 4.5.3 allows remote unauthenticated attackers to query sensitive user accounts data, as demonstrated by an api/v1/users/1 request.

How urgent is CVE-2021-38095?

Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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