CVE-2025-50848: A file upload vulnerability was discovered in CS Cart 4.18.3, allows attackers to execute arbitrary code

Routine

MEDIUM 6.1DOWNGRADE

CVE-2025-50848 is a medium-severity flaw (CVSS 6.1) affecting cs-cart. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A file upload vulnerability was discovered in CS Cart 4.18.3, allows attackers to execute arbitrary code. CS Cart 4.18.3 allows unrestricted upload of HTML files, which are rendered directly in the browser when accessed. This allows an attacker to upload a crafted HTML file containing malicious content, such as a fake login form for credential harvesting or scripts for Cross-Site Scripting (XSS) attacks. Since the content is served from a trusted

Why this priority

No elevated risk signals yet

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	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-07-31
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: cs-cart

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-31 16:15 UTCPublished CVE record published
2026-07-05 01:21 UTCUpdated Record last modified

cs-cart cs-cart DOWNGRADE

Affected: 4.18.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.18.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.18.3 (Debian / Ubuntu)

apt-cache madison cs-cart sudo apt install cs-cart=<VERSION_BEFORE_4.18.3> sudo apt-mark hold cs-cart

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

dnf --showduplicates list cs-cart sudo dnf downgrade cs-cart-<VERSION_BEFORE_4.18.3> sudo dnf versionlock add cs-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-2025-50848?

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

Is CVE-2025-50848 being exploited?

CVE-2025-50848 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-2025-50848 affect?

CVE-2025-50848 affects cs-cart. Severity is medium (CVSS 6.1). A file upload vulnerability was discovered in CS Cart 4.18.3, allows attackers to execute arbitrary code. CS Cart 4.18.3 allows unrestricted upload of HTML files, which are rendered directly in the browser when accessed. This allows an atta

How urgent is CVE-2025-50848?

Priority 25/100. No elevated risk signals yet.

Related CVEs

CVE-2025-50850 HIGH 8.6 DOWNGRADE An issue was discovered in CS Cart 4.18.3 allows the vendor login functionality lacks essential security contr
CVE-2025-50847 MEDIUM 6.5 DOWNGRADE Cross Site Request Forgery (CSRF) vulnerability in CS Cart 4.18.3, allows attackers to add products to a user'

References

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