CVE-2020-8641: Lotus Core CMS 1.0.1 allows authenticated Local File Inclusion of .php files via directory traversal in the in

This week

HIGH 8.8DOWNGRADE

CVE-2020-8641 is a high-severity flaw (CVSS 8.8) affecting lotus core cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Lotus Core CMS 1.0.1 allows authenticated Local File Inclusion of .php files via directory traversal in the index.php page_slug parameter.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	10.8% (top 4%)
CISA exploited list	No
Weakness	CWE-22
Published	2020-02-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: lotus core cms project

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

Am I affected?

Timeline

2020-02-05 21:15 UTCPublished CVE record published
2026-06-17 03:26 UTCUpdated Record last modified

lotus core cms project lotus core cms DOWNGRADE

Affected: 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.1

1. Check installed version

apt-cache policy lotus-core-cms || rpm -q lotus-core-cms || lotus-core-cms --version

2. No fixed release: DOWNGRADE to a release before 1.0.1 (Debian / Ubuntu)

apt-cache madison lotus-core-cms sudo apt install lotus-core-cms=<VERSION_BEFORE_1.0.1> sudo apt-mark hold lotus-core-cms

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

dnf --showduplicates list lotus-core-cms sudo dnf downgrade lotus-core-cms-<VERSION_BEFORE_1.0.1> sudo dnf versionlock add lotus-core-cms

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Lotus Core CMS 1.0.1 - Local File Inclusion

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-2020-8641?

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

Is CVE-2020-8641 being exploited?

CVE-2020-8641 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-2020-8641 affect?

CVE-2020-8641 affects lotus core cms. Severity is high (CVSS 8.8). Lotus Core CMS 1.0.1 allows authenticated Local File Inclusion of .php files via directory traversal in the index.php page_slug parameter.

How urgent is CVE-2020-8641?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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