CVE-2026-21822: Path Traversal (CVSS 6.3)

Description

HCLSoftware AppScan 360° was affected by a Path Traversal vulnerability in the ASReportService component. Improper handling of file paths allows an authenticated attacker to read or write files outside the intended directory, potentially enabling file system structure inspection or unauthorized file modification within the application's directory scope.

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CVSS v3.1 Score

6.3

MEDIUM

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

EPSS — Exploit Prediction

0.0021

Probability of exploitation

0.10%

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-22 Path Traversal

References

Other References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133460

Frequently Asked Questions

What is CVE-2026-21822? +

HCLSoftware AppScan 360° was affected by a Path Traversal vulnerability in the ASReportService component. Improper handling of file paths allows an authenticated attacker to read or write files outside the intended directory, potentially enabling file system structure inspection or unauthorized file modification within the application's directory scope. It has a CVSS v3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2026-21822? +

CVE-2026-21822 has a CVSS v3.1 score of 6.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0021, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-21822? +

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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