How severe is CVE-2020-28501?

CVE-2020-28501 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2020-28501 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28501?

CVE-2020-28501 affects Crawlerdetect Project Crawlerdetect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-28501?

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

When was CVE-2020-28501 published?

CVE-2020-28501 was published on 2021-03-22 and last updated on 2026-06-17.

CVE-2020-28501

CVE-2020-28501 is a medium-severity vulnerability in Crawlerdetect Project Crawlerdetect with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Crawlerdetect Project Crawlerdetect
Published: 2021-03-22
Last modified: 2026-06-17

Description

This affects the package es6-crawler-detect before 3.1.3. No limitation of user agent string length supplied to regex operators.

Frequently asked questions

What is CVE-2020-28501?: This affects the package es6-crawler-detect before 3.1.3. No limitation of user agent string length supplied to regex operators.
How severe is CVE-2020-28501?: CVE-2020-28501 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2020-28501 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28501?: CVE-2020-28501 affects Crawlerdetect Project Crawlerdetect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-28501?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-28501 published?: CVE-2020-28501 was published on 2021-03-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:crawlerdetect_project:crawlerdetect:*:*:*:*:*:node.js:*:*