How severe is CVE-2023-3539?

CVE-2023-3539 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-3539 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3539?

CVE-2023-3539 affects Simplephpscripts Simple Forum Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3539?

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

When was CVE-2023-3539 published?

CVE-2023-3539 was published on 2023-07-07 and last updated on 2026-06-17.

CVE-2023-3539

CVE-2023-3539 is a low-severity vulnerability in Simplephpscripts Simple Forum Php with a CVSS 3.x base score of 3.5. 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: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Simplephpscripts Simple Forum Php
Published: 2023-07-07
Last modified: 2026-06-17

Description

A vulnerability, which was classified as problematic, has been found in SimplePHPscripts Simple Forum PHP 2.7. This issue affects some unknown processing of the file /preview.php of the component URL Parameter Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The associated identifier of this vulnerability is VDB-233291.

Frequently asked questions

What is CVE-2023-3539?: A vulnerability, which was classified as problematic, has been found in SimplePHPscripts Simple Forum PHP 2.7. This issue affects some unknown processing of the file /preview.php of the component URL Parameter Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The associated identifier of this vulnerability is VDB-233291.
How severe is CVE-2023-3539?: CVE-2023-3539 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-3539 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3539?: CVE-2023-3539 affects Simplephpscripts Simple Forum Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3539?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3539 published?: CVE-2023-3539 was published on 2023-07-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:simplephpscripts:simple_forum_php:2.7:*:*:*:*:*:*:*

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