CVE-2009-0412: The ProcessLogin function in class.auth.php in Interspire Shopping Cart (ISC) 4.0.1 Ultimate edition allows re

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HIGH 7.5DOWNGRADE

CVE-2009-0412 is a high-severity flaw (CVSS 7.5) affecting shopping cart. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ProcessLogin function in class.auth.php in Interspire Shopping Cart (ISC) 4.0.1 Ultimate edition allows remote attackers to bypass authentication and obtain administrative access by reusing the RememberToken cookie after a failed admin login attempt.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-287
Published	2009-02-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: interspire

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2009-02-03 20:30 UTCPublished CVE record published
2026-06-16 23:04 UTCUpdated Record last modified

interspire shopping cart DOWNGRADE

Affected: 4.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.1

1. Check installed version

apt-cache policy shopping-cart || rpm -q shopping-cart || shopping-cart --version

2. No fixed release: DOWNGRADE to a release before 4.0.1 (Debian / Ubuntu)

apt-cache madison shopping-cart sudo apt install shopping-cart=<VERSION_BEFORE_4.0.1> sudo apt-mark hold shopping-cart

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

dnf --showduplicates list shopping-cart sudo dnf downgrade shopping-cart-<VERSION_BEFORE_4.0.1> sudo dnf versionlock add shopping-cart

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-2009-0412?

shopping cart: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2009-0412 being exploited?

CVE-2009-0412 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-2009-0412 affect?

CVE-2009-0412 affects shopping cart. Severity is high (CVSS 7.5). The ProcessLogin function in class.auth.php in Interspire Shopping Cart (ISC) 4.0.1 Ultimate edition allows remote attackers to bypass authentication and obtain administrative access by reusing the RememberToken cookie after a failed admin

How urgent is CVE-2009-0412?

Priority 45/100. High severity

Software pages

PHP vulnerabilities

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References

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