How severe is CVE-2023-40833?

CVE-2023-40833 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40833 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40833?

CVE-2023-40833 affects Thecosy Icecms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40833?

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

When was CVE-2023-40833 published?

CVE-2023-40833 was published on 2023-10-12 and last updated on 2026-06-17.

CVE-2023-40833

CVE-2023-40833 is a critical-severity vulnerability in Thecosy Icecms with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Thecosy Icecms
Published: 2023-10-12
Last modified: 2026-06-17

Description

An issue in Thecosy IceCMS v.1.0.0 allows a remote attacker to gain privileges via the Id and key parameters in getCosSetting.

Frequently asked questions

What is CVE-2023-40833?: An issue in Thecosy IceCMS v.1.0.0 allows a remote attacker to gain privileges via the Id and key parameters in getCosSetting.
How severe is CVE-2023-40833?: CVE-2023-40833 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40833 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40833?: CVE-2023-40833 affects Thecosy Icecms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40833?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-40833 published?: CVE-2023-40833 was published on 2023-10-12 and last updated on 2026-06-17.

References

https://gist.github.com/Sholway/93f05987dbf35c15c26de32b1e5590ec

Affected products (1)

cpe:2.3:a:thecosy:icecms:1.0.0:*:*:*:*:*:*:*

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