CVE-2020-24203: Insecure File Permissions and Arbitrary File Upload in the upload pic function in updatesubcategory.php in Pro

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-24203 is a critical-severity flaw (CVSS 9.8) affecting travel management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insecure File Permissions and Arbitrary File Upload in the upload pic function in updatesubcategory.php in Projects World Travel Management System v1.0 allows remote unauthenticated attackers to gain remote code execution.

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	3.7% (top 10%)
CISA exploited list	No
Weakness	CWE-425, CWE-434
Published	2020-08-27
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

2020-08-27 18:15 UTCPublished CVE record published
2026-06-17 03:05 UTCUpdated Record last modified

projectworlds travel management 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 travel-management-system || rpm -q travel-management-system || travel-management-system --version

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

apt-cache madison travel-management-system sudo apt install travel-management-system=<VERSION_BEFORE_1.0> sudo apt-mark hold travel-management-system

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

dnf --showduplicates list travel-management-system sudo dnf downgrade travel-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add travel-management-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-2020-24203?

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

Is CVE-2020-24203 being exploited?

CVE-2020-24203 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-2020-24203 affect?

CVE-2020-24203 affects travel management system. Severity is critical (CVSS 9.8). Insecure File Permissions and Arbitrary File Upload in the upload pic function in updatesubcategory.php in Projects World Travel Management System v1.0 allows remote unauthenticated attackers to gain remote code execution.

How urgent is CVE-2020-24203?

Priority 67/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-9925 HIGH 7.3 DOWNGRADE A vulnerability was found in projectworlds Travel Management System 1.0
CVE-2025-9928 HIGH 7.3 DOWNGRADE A security flaw has been discovered in projectworlds Travel Management System 1.0
CVE-2025-9927 HIGH 7.3 DOWNGRADE A vulnerability was identified in projectworlds Travel Management System 1.0
CVE-2025-9926 HIGH 7.3 DOWNGRADE A vulnerability was determined in projectworlds Travel Management System 1.0
CVE-2025-9924 HIGH 7.3 DOWNGRADE A vulnerability has been found in projectworlds Travel Management System 1.0

References

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