How severe is CVE-2023-0840?

CVE-2023-0840 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-2023-0840 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-2023-0840?

CVE-2023-0840 affects Phpcrazy Project Phpcrazy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0840?

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

When was CVE-2023-0840 published?

CVE-2023-0840 was published on 2023-02-15 and last updated on 2026-06-17.

CVE-2023-0840

CVE-2023-0840 is a low-severity vulnerability in Phpcrazy Project Phpcrazy 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: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Phpcrazy Project Phpcrazy
Published: 2023-02-15
Last modified: 2026-06-17

Description

A vulnerability classified as problematic was found in PHPCrazy 1.1.1. This vulnerability affects unknown code of the file admin/admin.php?action=users&mode=info&user=2. The manipulation of the argument username leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-221086 is the identifier assigned to this vulnerability.

Frequently asked questions

What is CVE-2023-0840?: A vulnerability classified as problematic was found in PHPCrazy 1.1.1. This vulnerability affects unknown code of the file admin/admin.php?action=users&mode=info&user=2. The manipulation of the argument username leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-221086 is the identifier assigned to this vulnerability.
How severe is CVE-2023-0840?: CVE-2023-0840 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-2023-0840 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-2023-0840?: CVE-2023-0840 affects Phpcrazy Project Phpcrazy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0840?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0840 published?: CVE-2023-0840 was published on 2023-02-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpcrazy_project:phpcrazy:1.1.1:*:*:*:*:*:*:*

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