How severe is CVE-2023-1305?

CVE-2023-1305 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-1305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-1305?

CVE-2023-1305 primarily affects Rapid7 Insightappsec. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-1305?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-1305 published?

CVE-2023-1305 was published on 2023-03-21 and last updated on 2026-06-17.

CVE-2023-1305

CVE-2023-1305 is a high-severity vulnerability in Rapid7 Insightappsec with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-653.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-653
Affected product: Rapid7 Insightappsec
Published: 2023-03-21
Last modified: 2026-06-17

Description

An authenticated attacker can leverage an exposed “box” object to read and write arbitrary files from disk, provided those files can be parsed as yaml or JSON. This issue was resolved in the Managed and SaaS deployments on February 1, 2023, and in version 23.2.1 of the Self-Managed version of InsightCloudSec.

Frequently asked questions

What is CVE-2023-1305?: An authenticated attacker can leverage an exposed “box” object to read and write arbitrary files from disk, provided those files can be parsed as yaml or JSON. This issue was resolved in the Managed and SaaS deployments on February 1, 2023, and in version 23.2.1 of the Self-Managed version of InsightCloudSec.
How severe is CVE-2023-1305?: CVE-2023-1305 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-1305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1305?: CVE-2023-1305 primarily affects Rapid7 Insightappsec. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-1305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-1305 published?: CVE-2023-1305 was published on 2023-03-21 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:rapid7:insightappsec:*:*:*:*:self-managed:*:*:*
cpe:2.3:a:rapid7:insightcloudsec:*:*:*:*:managed:*:*:*
cpe:2.3:a:rapid7:insightcloudsec:*:*:*:*:saas:*:*:*

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