CVE-2024-42843: Projectworlds Online Examination System v1.0 is vulnerable to SQL Injection via the subject parameter in feed.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2024-42843 is a critical-severity flaw (CVSS 9.8) affecting online examination system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Projectworlds Online Examination System v1.0 is vulnerable to SQL Injection via the subject parameter in feed.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	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-89
Published	2024-08-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: projectworlds

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

Am I affected?

Timeline

2024-08-15 17:15 UTCPublished CVE record published
2026-06-17 07:50 UTCUpdated Record last modified

projectworlds online examination 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 online-examination-system || rpm -q online-examination-system || online-examination-system --version

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

apt-cache madison online-examination-system sudo apt install online-examination-system=<VERSION_BEFORE_1.0> sudo apt-mark hold online-examination-system

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

dnf --showduplicates list online-examination-system sudo dnf downgrade online-examination-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add online-examination-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-2024-42843?

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

Is CVE-2024-42843 being exploited?

CVE-2024-42843 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-2024-42843 affect?

CVE-2024-42843 affects online examination system. Severity is critical (CVSS 9.8). Projectworlds Online Examination System v1.0 is vulnerable to SQL Injection via the subject parameter in feed.php.

How urgent is CVE-2024-42843?

Priority 57/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-11736 HIGH 7.3 DOWNGRADE A flaw has been found in itsourcecode Online Examination System 1.0
CVE-2026-2173 HIGH 7.3 DOWNGRADE A vulnerability was identified in code-projects Online Examination System 1.0
CVE-2026-1423 MEDIUM 6.3 DOWNGRADE A vulnerability was determined in code-projects Online Examination System 1.0
CVE-2026-1422 HIGH 7.3 DOWNGRADE A vulnerability was found in code-projects Online Examination System 1.0
CVE-2026-1421 LOW 3.5 DOWNGRADE A vulnerability has been found in code-projects Online Examination System 1.0

References

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