How severe is CVE-2020-24771?

CVE-2020-24771 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-24771 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24771?

CVE-2020-24771 affects Nexusphp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-24771?

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-2020-24771 published?

CVE-2020-24771 was published on 2022-03-30 and last updated on 2026-06-17.

CVE-2020-24771

CVE-2020-24771 is a high-severity vulnerability in Nexusphp with a CVSS 3.x base score of 7.5. 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-863.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Nexusphp
Published: 2022-03-30
Last modified: 2026-06-17

Description

Incorrect access control in NexusPHP 1.5.beta5.20120707 allows unauthorized attackers to access published content.

Frequently asked questions

What is CVE-2020-24771?: Incorrect access control in NexusPHP 1.5.beta5.20120707 allows unauthorized attackers to access published content.
How severe is CVE-2020-24771?: CVE-2020-24771 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-24771 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24771?: CVE-2020-24771 affects Nexusphp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-24771?: 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-2020-24771 published?: CVE-2020-24771 was published on 2022-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nexusphp:nexusphp:1.5:*:*:*:*:*:*:*

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CVE-2022-46887 — Critical (CVSS 9.8): Multiple SQL injection vulnerabilities in NexusPHP before 1.7.33 allow remote attackers to execute arbitrary SQL…
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CVE-2017-14076 — Critical (CVSS 9.8): SQL Injection exists in NexusPHP 1.5.beta5.20120707 via the id parameter to linksmanage.php in an editlink action.
CVE-2017-14069 — Critical (CVSS 9.8): SQL Injection exists in NexusPHP 1.5.beta5.20120707 via the usernw array parameter to nowarn.php.
CVE-2017-13669 — Critical (CVSS 9.8): SQL Injection exists in NexusPHP 1.5.beta5.20120707 via the setanswered parameter to staffbox.php.

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