CVE-2020-36084: SQL Injection vulnerability in SourceCodester Responsive E-Learning System 1.0 allows remote attackers to inje

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-36084 is a critical-severity flaw (CVSS 9.8) affecting responsive e-learning system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection vulnerability in SourceCodester Responsive E-Learning System 1.0 allows remote attackers to inject sql query in /elearning/delete_teacher_students.php?id= parameter via id field.

Why this priority

Critical 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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-89
Published	2025-02-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: jkev

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

Am I affected?

Timeline

2025-02-05 22:15 UTCPublished CVE record published
2026-06-17 03:14 UTCUpdated Record last modified

jkev responsive e-learning system DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy responsive-e-learning-system || rpm -q responsive-e-learning-system || responsive-e-learning-system --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison responsive-e-learning-system sudo apt install responsive-e-learning-system=<VERSION_BEFORE_1.0> sudo apt-mark hold responsive-e-learning-system

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

dnf --showduplicates list responsive-e-learning-system sudo dnf downgrade responsive-e-learning-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add responsive-e-learning-system

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-2020-36084?

responsive e-learning system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-36084 being exploited?

CVE-2020-36084 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-2020-36084 affect?

CVE-2020-36084 affects responsive e-learning system. Severity is critical (CVSS 9.8). SQL Injection vulnerability in SourceCodester Responsive E-Learning System 1.0 allows remote attackers to inject sql query in /elearning/delete_teacher_students.php?id= parameter via id field.

How urgent is CVE-2020-36084?

Priority 58/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-5213 HIGH 7.3 DOWNGRADE A vulnerability was found in projectworlds Responsive E-Learning System 1.0
CVE-2025-10687 HIGH 7.3 DOWNGRADE A vulnerability was found in SourceCodester Responsive E-Learning System 1.0

References

← Back to latest CVEs