CVE-2021-36471: Directory Traversal vulnerability in AdminLTE 3.1.0 allows remote attackers to gain escalated privilege and vi

This month

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-36471 is a critical-severity flaw (CVSS 9.8) affecting adminlte. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory Traversal vulnerability in AdminLTE 3.1.0 allows remote attackers to gain escalated privilege and view sensitive information via /admin/index2.html, /admin/index3.html URIs. Note: AdminLTE developers dispute that this a weakness with AdminLTE and is instead a misconfiguration error on various websites by the website developers.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-22
Published	2023-02-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: adminlte.io

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

Am I affected?

Timeline

2023-02-07 23:15 UTCPublished CVE record published
2026-06-17 03:58 UTCUpdated Record last modified

adminlte.io adminlte DOWNGRADE

Affected: 3.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.1.0 (Debian / Ubuntu)

apt-cache madison adminlte sudo apt install adminlte=<VERSION_BEFORE_3.1.0> sudo apt-mark hold adminlte

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

dnf --showduplicates list adminlte sudo dnf downgrade adminlte-<VERSION_BEFORE_3.1.0> sudo dnf versionlock add adminlte

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-2021-36471?

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

Is CVE-2021-36471 being exploited?

CVE-2021-36471 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-2021-36471 affect?

CVE-2021-36471 affects adminlte. Severity is critical (CVSS 9.8). Directory Traversal vulnerability in AdminLTE 3.1.0 allows remote attackers to gain escalated privilege and view sensitive information via /admin/index2.html, /admin/index3.html URIs. Note: AdminLTE developers dispute that this a weakness w

How urgent is CVE-2021-36471?

Priority 59/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-31029 MEDIUM 5.9 UPGRADE AdminLTE is a Pi-hole Dashboard for stats and configuration
CVE-2022-23513 MEDIUM 5.3 UPGRADE Pi-Hole is a network-wide ad blocking via your own Linux hardware, AdminLTE is a Pi-hole Dashboard for stats a

References

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