Home→Vulnerabilities→CVE-2026-5813
Disclosed

CVE-2026-5813

A weakness has been identified in PHPGurukul Online Course Registration 3.1. This vulnerability affects unknown code of the file /check_availability.php. Executing a manipulation of the argument cid can lead to sql injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

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Exploitation Probability (EPSS)

Low Priority
0.04%

The Exploit Prediction Scoring System (EPSS) uses machine learning to estimate the probability that a vulnerability will be exploited in the wild within the next 30 days.

0% (Theoretical)100% (Certainty)

7-Day Exploitation Trend

Vulnerability Timeline

2 events
Apr 8, 2026
Vulnerability Disclosed
Published to component-level vulnerability database.
Apr 13, 2026
Last Updated
Record updated with new analysis or tags.

Threat Actor Attribution

PREMIUM INTEL
Associated Groups:Lazarus Group, APT28
Ransomware Campaigns:LockBit 3.0, BlackCat
IoCs (Indicators):14 IPs, 3 Hashes

Remediation & Mitigation

SOLUTION

Official patches and mitigation steps are available for this vulnerability.

# Update Command
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name

References

https://github.com/f1rstb100d/CVE/issues/20GitHub
https://phpgurukul.com/Phpgurukul
https://vuldb.com/submit/787686Vuldb
https://vuldb.com/vuln/356261Vuldb

Am I Vulnerable?

Check your domain or package.json for CVE-2026-5813 exposure.

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Vulnerability Details

CVSS Base Score
7.3/ 10
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published Date
Apr 8, 2026
Last Modified
Apr 13, 2026
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