CVE-2026-30526: A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Zoo Management System v1.0

Routine

MEDIUM 6.1DOWNGRADE

CVE-2026-30526 is a medium-severity flaw (CVSS 6.1) affecting zoo management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Zoo Management System v1.0. The vulnerability is located in the login page, specifically within the msg parameter. The application reflects the content of the msg parameter back to the user without proper HTML encoding or sanitization. This allows remote attackers to inject arbitrary web script or HTML via a crafted URL.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-04-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pushpam02

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

Am I affected?

Timeline

2026-04-01 15:22 UTCPublished CVE record published
2026-06-17 10:32 UTCUpdated Record last modified

pushpam02 zoo 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 zoo-management-system || rpm -q zoo-management-system || zoo-management-system --version

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

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

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

dnf --showduplicates list zoo-management-system sudo dnf downgrade zoo-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add zoo-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-2026-30526?

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

Is CVE-2026-30526 being exploited?

CVE-2026-30526 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-2026-30526 affect?

CVE-2026-30526 affects zoo management system. Severity is medium (CVSS 6.1). A Reflected Cross-Site Scripting (XSS) vulnerability exists in SourceCodester Zoo Management System v1.0. The vulnerability is located in the login page, specifically within the msg parameter. The application reflects the content of the msg

How urgent is CVE-2026-30526?

Priority 30/100. Public exploit reference

References

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