How severe is CVE-2018-18282?

CVE-2018-18282 has a CVSS 3.x base score of 6.1, 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-2018-18282 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18282?

CVE-2018-18282 primarily affects Zeit Next.js. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-18282?

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

When was CVE-2018-18282 published?

CVE-2018-18282 was published on 2018-10-12 and last updated on 2026-06-17.

CVE-2018-18282

CVE-2018-18282 is a medium-severity vulnerability in Zeit Next.js with a CVSS 3.x base score of 6.1. 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: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Zeit Next.js
Published: 2018-10-12
Last modified: 2026-06-17

Description

Next.js 7.0.0 and 7.0.1 has XSS via the 404 or 500 /_error page.

Frequently asked questions

What is CVE-2018-18282?: Next.js 7.0.0 and 7.0.1 has XSS via the 404 or 500 /_error page.
How severe is CVE-2018-18282?: CVE-2018-18282 has a CVSS 3.x base score of 6.1, 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-2018-18282 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18282?: CVE-2018-18282 primarily affects Zeit Next.js. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-18282?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18282 published?: CVE-2018-18282 was published on 2018-10-12 and last updated on 2026-06-17.

References

https://github.com/zeit/next.js/releases/tag/7.0.2

Affected products (2)

cpe:2.3:a:zeit:next.js:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:zeit:next.js:7.0.1:*:*:*:*:*:*:*

More vulnerabilities in Zeit Next.js

CVE-2018-6184 — High (CVSS 7.5): ZEIT Next.js 4 before 4.2.3 has Directory Traversal under the /_next request namespace.
CVE-2017-16877 — High (CVSS 7.5): ZEIT Next.js before 2.4.1 has directory traversal under the /_next and /static request namespace, allowing attackers to…
CVE-2020-5284 — Medium (CVSS 4.4): Next.js versions before 9.3.2 have a directory traversal vulnerability. Attackers could craft special requests to…

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