CVE-2026-90843: Command Injection (CVSS 8.3)

Description

A security vulnerability has been detected in SabyasachiRana WebMap up to 8b95fe4dc301a3c09ddf145b895de0bf9f8d2a25. This affects the function nmap_newscan of the file functions_nmap.py of the component New Nmap Scan Handler. Such manipulation of the argument target/params leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The name of the patch is 3d52f65803a2716bff14d938352c6fef45b0cfb6. A patch should be applied to remediate this issue. This issue got fixed with a silent patch.

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CVSS v3.1 Score

8.3

HIGH

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

EPSS — Exploit Prediction

0.0137

Probability of exploitation

0.70%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-77 CWE-77

CWE-78 OS Command Injection

References

Other References

https://calledstriker.gitbook.io/blog/security-research/webmap https://github.com/SabyasachiRana/WebMap/ https://github.com/SabyasachiRana/WebMap/commit/3d52f65803a2716bff14d938352c6fef45b0cfb6 https://raw.githubusercontent.com/CalledSTRIKER/CalledSTRIKER-gitbook/refs/heads/main/security-research/2026-05-30_12-29.png https://vuldb.com/cve/CVE-2026-90843 https://vuldb.com/submit/925586 https://vuldb.com/vuln/403395 https://vuldb.com/vuln/403395/cti

Frequently Asked Questions

What is CVE-2026-90843? +

A security vulnerability has been detected in SabyasachiRana WebMap up to 8b95fe4dc301a3c09ddf145b895de0bf9f8d2a25. This affects the function nmap_newscan of the file functions_nmap.py of the component New Nmap Scan Handler. Such manipulation of the argument target/params leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The name of the patch is 3d52f65803a2716bff14d938352c6fef45b0cfb6. A patch should be applied to remediate this issue. This issue got fixed with a silent patch. It has a CVSS v3.1 base score of 8.3 (HIGH).

How severe is CVE-2026-90843? +

CVE-2026-90843 has a CVSS v3.1 score of 8.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0137, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-90843? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-90843