How severe is CVE-2024-21497?

CVE-2024-21497 has a CVSS 3.x base score of 5.4, 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-2024-21497 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21497?

CVE-2024-21497 affects Greenpau Caddy-security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21497?

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

Does CVE-2024-21497 have an EU (EUVD) identifier?

Yes. CVE-2024-21497 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0576.

When was CVE-2024-21497 published?

CVE-2024-21497 was published on 2024-02-17 and last updated on 2026-06-17.

CVE-2024-21497

CVE-2024-21497 is a medium-severity vulnerability in Greenpau Caddy-security with a CVSS 3.x base score of 5.4. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0576
Weakness: CWE-601
Affected product: Greenpau Caddy-security
Published: 2024-02-17
Last modified: 2026-06-17

Description

Versions of the package github.com/greenpau/caddy-security are vulnerable to Open Redirect via the redirect_url parameter. An attacker could perform a phishing attack and trick users into visiting a malicious website by crafting a convincing URL with this parameter. To exploit this vulnerability, the user must take an action, such as clicking on a portal button or using the browser’s back button, to trigger the redirection.

Frequently asked questions

What is CVE-2024-21497?: Versions of the package github.com/greenpau/caddy-security are vulnerable to Open Redirect via the redirect_url parameter. An attacker could perform a phishing attack and trick users into visiting a malicious website by crafting a convincing URL with this parameter. To exploit this vulnerability, the user must take an action, such as clicking on a portal button or using the browser’s back button, to trigger the redirection.
How severe is CVE-2024-21497?: CVE-2024-21497 has a CVSS 3.x base score of 5.4, 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-2024-21497 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21497?: CVE-2024-21497 affects Greenpau Caddy-security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21497?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21497 have an EU (EUVD) identifier?: Yes. CVE-2024-21497 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0576.
When was CVE-2024-21497 published?: CVE-2024-21497 was published on 2024-02-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:greenpau:caddy-security:*:*:*:*:*:*:*:*

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CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.

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