CVE-2021-45255

Name: CVE-2021-45255
Creator: NVD / NIST
Published: 2021-12-21T12:15:07.567+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2021-45255 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The email parameter from ajax.php of Video Sharing Website 1.0 appears to be vulnerable to SQL injection attacks. A payload injects a SQL sub-query that calls MySQL's load_file function with a UNC file path that references a URL on an external domain. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

The email parameter from ajax.php of Video Sharing Website 1.0 appears to be vulnerable to SQL injection attacks. A payload injects a SQL sub-query that calls MySQL's load_file function with a UNC file path that references a URL on an external domain. The application interacted with that domain, indicating that the injected SQL query was executed.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.54%

71.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Video Sharing Website Project	Video Sharing Website	1.0

References

https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/Video-Sharing-WebsiteExploit, Third Party Advisory
https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/Video-Sharing-WebsiteExploit, Third Party Advisory

Timeline

Published: Dec 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45255?

How severe is CVE-2021-45255?

CVE-2021-45255 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45255?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45255?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST