CVE-2020-36034: SQL Injection vulnerability in oretnom23 School Faculty Scheduling System version 1.0, allows remote attacker

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-36034 is a critical-severity flaw (CVSS 9.8) affecting school faculty scheduling system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection vulnerability in oretnom23 School Faculty Scheduling System version 1.0, allows remote attacker to execute arbitrary code, escalate privilieges, and gain sensitive information via crafted payload to id parameter in manage_user.php.

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	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-08-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: school faculty scheduling system project

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

Am I affected?

Timeline

2023-08-11 14:15 UTCPublished CVE record published
2026-06-17 03:14 UTCUpdated Record last modified

school faculty scheduling system project school faculty scheduling 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 school-faculty-scheduling-system || rpm -q school-faculty-scheduling-system || school-faculty-scheduling-system --version

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

apt-cache madison school-faculty-scheduling-system sudo apt install school-faculty-scheduling-system=<VERSION_BEFORE_1.0> sudo apt-mark hold school-faculty-scheduling-system

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

dnf --showduplicates list school-faculty-scheduling-system sudo dnf downgrade school-faculty-scheduling-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add school-faculty-scheduling-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-2020-36034?

school faculty scheduling system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-36034 being exploited?

CVE-2020-36034 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-2020-36034 affect?

CVE-2020-36034 affects school faculty scheduling system. Severity is critical (CVSS 9.8). SQL Injection vulnerability in oretnom23 School Faculty Scheduling System version 1.0, allows remote attacker to execute arbitrary code, escalate privilieges, and gain sensitive information via crafted payload to id parameter in manage_user

How urgent is CVE-2020-36034?

Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-0211 MEDIUM 6.3 DOWNGRADE A vulnerability was found in Campcodes School Faculty Scheduling System 1.0 and classified as critical
CVE-2025-0210 HIGH 7.3 DOWNGRADE A vulnerability has been found in Campcodes School Faculty Scheduling System 1.0 and classified as critical

References

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