CVE-2026-4778: A weakness has been identified in SourceCodester Sales and Inventory System 1.0

Routine

MEDIUM 6.3DOWNGRADE

CVE-2026-4778 is a medium-severity flaw (CVSS 6.3) affecting sales and inventory system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A weakness has been identified in SourceCodester Sales and Inventory System 1.0. This vulnerability affects unknown code of the file update_category.php of the component HTTP GET Parameter Handler. This manipulation of the argument sid causes sql injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-74, CWE-89
Published	2026-03-24
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: ahsanriaz26gmailcom

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

Am I affected?

Timeline

2026-03-24 23:17 UTCPublished CVE record published
2026-06-17 10:57 UTCUpdated Record last modified

ahsanriaz26gmailcom sales and inventory 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 sales-and-inventory-system || rpm -q sales-and-inventory-system || sales-and-inventory-system --version

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

apt-cache madison sales-and-inventory-system sudo apt install sales-and-inventory-system=<VERSION_BEFORE_1.0> sudo apt-mark hold sales-and-inventory-system

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

dnf --showduplicates list sales-and-inventory-system sudo dnf downgrade sales-and-inventory-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add sales-and-inventory-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-2026-4778?

sales and inventory system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-4778 being exploited?

CVE-2026-4778 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-2026-4778 affect?

CVE-2026-4778 affects sales and inventory system. Severity is medium (CVSS 6.3). A weakness has been identified in SourceCodester Sales and Inventory System 1.0. This vulnerability affects unknown code of the file update_category.php of the component HTTP GET Parameter Handler. This manipulation of the argument sid caus

How urgent is CVE-2026-4778?

Priority 33/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-4826 MEDIUM 6.3 DOWNGRADE A vulnerability was determined in SourceCodester Sales and Inventory System 1.0
CVE-2026-4825 MEDIUM 6.3 DOWNGRADE A vulnerability was found in SourceCodester Sales and Inventory System 1.0
CVE-2026-4781 MEDIUM 6.3 DOWNGRADE A flaw has been found in SourceCodester Sales and Inventory System 1.0
CVE-2026-4780 MEDIUM 6.3 DOWNGRADE A vulnerability was detected in SourceCodester Sales and Inventory System 1.0
CVE-2026-4779 MEDIUM 6.3 DOWNGRADE A security vulnerability has been detected in SourceCodester Sales and Inventory System 1.0

References

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