CVE-2018-6866: Cross Site Scripting (XSS) exists in PHP Scripts Mall Learning and Examination Management System Script 2.3.1

This month

MEDIUM 5.4DOWNGRADE

CVE-2018-6866 is a medium-severity flaw (CVSS 5.4) affecting learning and examination management system script. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross Site Scripting (XSS) exists in PHP Scripts Mall Learning and Examination Management System Script 2.3.1 via a crafted message.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-02-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: learning and examination management system script project

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

Am I affected?

Timeline

2018-02-23 13:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

learning and examination management system script project learning and examination management system script DOWNGRADE

Affected: 2.3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3.1

1. Check installed version

apt-cache policy learning-and-examination-management-system-script || rpm -q learning-and-examination-management-system-script || learning-and-examination-management-system-script --version

2. No fixed release: DOWNGRADE to a release before 2.3.1 (Debian / Ubuntu)

apt-cache madison learning-and-examination-management-system-script sudo apt install learning-and-examination-management-system-script=<VERSION_BEFORE_2.3.1> sudo apt-mark hold learning-and-examination-management-system-script

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

dnf --showduplicates list learning-and-examination-management-system-script sudo dnf downgrade learning-and-examination-management-system-script-<VERSION_BEFORE_2.3.1> sudo dnf versionlock add learning-and-examination-management-system-script

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-2018-6866?

learning and examination management system script: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-6866 being exploited?

CVE-2018-6866 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-2018-6866 affect?

CVE-2018-6866 affects learning and examination management system script. Severity is medium (CVSS 5.4). Cross Site Scripting (XSS) exists in PHP Scripts Mall Learning and Examination Management System Script 2.3.1 via a crafted message.

How urgent is CVE-2018-6866?

Priority 42/100. Public exploit reference

Software pages

PHP vulnerabilities

References

← Back to latest CVEs