How severe is CVE-2023-43339?

CVE-2023-43339 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-43339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43339?

CVE-2023-43339 affects Cmsmadesimple Cms Made Simple. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43339?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-43339 published?

CVE-2023-43339 was published on 2023-09-25 and last updated on 2026-06-17.

CVE-2023-43339

CVE-2023-43339 is a medium-severity vulnerability in Cmsmadesimple Cms Made Simple with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cmsmadesimple Cms Made Simple
Published: 2023-09-25
Last modified: 2026-06-17

Description

Cross-Site Scripting (XSS) vulnerability in cmsmadesimple v.2.2.18 allows a local attacker to execute arbitrary code via a crafted payload injected into the Database Name, DataBase User or Database Port components.

Frequently asked questions

What is CVE-2023-43339?: Cross-Site Scripting (XSS) vulnerability in cmsmadesimple v.2.2.18 allows a local attacker to execute arbitrary code via a crafted payload injected into the Database Name, DataBase User or Database Port components.
How severe is CVE-2023-43339?: CVE-2023-43339 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-43339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43339?: CVE-2023-43339 affects Cmsmadesimple Cms Made Simple. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43339?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-43339 published?: CVE-2023-43339 was published on 2023-09-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cmsmadesimple:cms_made_simple:2.2.18:*:*:*:*:*:*:*

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