CVE-2020-28130: An Arbitrary File Upload in the Upload Image component in SourceCodester Online Library Management System 1.0

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-28130 is a critical-severity flaw (CVSS 9.8) affecting online library management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Arbitrary File Upload in the Upload Image component in SourceCodester Online Library Management System 1.0 allows the user to conduct remote code execution via admin/borrower/index.php?view=add because .php files can be uploaded to admin/borrower/photos (under the web root).

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
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	6.5% (top 6%)
CISA exploited list	No
Weakness	CWE-434
Published	2020-11-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: online library management system project

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

Am I affected?

Timeline

2020-11-17 21:15 UTCPublished CVE record published
2026-06-17 03:10 UTCUpdated Record last modified

online library management system project online library 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 online-library-management-system || rpm -q online-library-management-system || online-library-management-system --version

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

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

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

dnf --showduplicates list online-library-management-system sudo dnf downgrade online-library-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add online-library-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-2020-28130?

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

Is CVE-2020-28130 being exploited?

CVE-2020-28130 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-2020-28130 affect?

CVE-2020-28130 affects online library management system. Severity is critical (CVSS 9.8). An Arbitrary File Upload in the Upload Image component in SourceCodester Online Library Management System 1.0 allows the user to conduct remote code execution via admin/borrower/index.php?view=add because .php files can be uploaded to admin

How urgent is CVE-2020-28130?

Priority 68/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

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References

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