CVE-2019-8290: Vulnerability in Online Store v1.0, The registration form requirements for the member email format can be bypa

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MEDIUM 6.1DOWNGRADE

CVE-2019-8290 is a medium-severity flaw (CVSS 6.1) affecting online store system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in Online Store v1.0, The registration form requirements for the member email format can be bypassed by posting directly to sent_register.php allowing special characters to be included and an XSS payload to be injected.

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	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-10-01
Last modified	2026-06-17

Publisher (CNA): Larry Cashdollar · Vendor: online store system project

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

Am I affected?

Timeline

2019-10-01 20:15 UTCPublished CVE record published
2026-06-17 02:41 UTCUpdated Record last modified

online store system project online store 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-store-system || rpm -q online-store-system || online-store-system --version

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

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

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

dnf --showduplicates list online-store-system sudo dnf downgrade online-store-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add online-store-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-2019-8290?

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

Is CVE-2019-8290 being exploited?

CVE-2019-8290 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-2019-8290 affect?

CVE-2019-8290 affects online store system. Severity is medium (CVSS 6.1). Vulnerability in Online Store v1.0, The registration form requirements for the member email format can be bypassed by posting directly to sent_register.php allowing special characters to be included and an XSS payload to be injected.

How urgent is CVE-2019-8290?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2019-8292 MEDIUM 5.3 DOWNGRADE Online Store System v1.0 delete_product.php doesn't check to see if a user authtenticated or has administrativ
CVE-2019-8291 HIGH 7.5 DOWNGRADE Online Store System v1.0 delete_file.php doesn't check to see if a user has administrative rights nor does it
CVE-2019-8289 MEDIUM 5.4 DOWNGRADE Vulnerability in Online Store v1.0, stored XSS in admin/user_view.php adidas_member_email variable
CVE-2019-8288 MEDIUM 5.4 DOWNGRADE Vulnerability in Online Store v1.0, Stored XSS in user_view.php where adidas_member_user variable is not sanit

References

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