CVE-2020-15242

mediumpriority · track · 24EPSS 0.008 · 55 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.77% (55th) EPSS
CVSS 5.8 · medium
Is it mine?
3 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

Next.js versions >=9.5.0 and <9.5.4 are vulnerable to an Open Redirect. Specially encoded paths could be used with the trailing slash redirect to allow an open redirect to occur to an external site. In general, this redirect does not directly harm users although can allow for phishing attacks by redirecting to an attackers domain from a trusted domain. The issue is fixed in version 9.5.4.

01

cvss

Technical severity, 0–10. One row per scoring source.

6.1
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 4.9
v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7
v3.14.7mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:Nsecondary · ENISA EU
v3.14.7mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:Nsecondary · security-advisories@github.comexploitability 2.8 · impact 1.4
v3.14.7mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:Nsecondary · OSV
v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-601USCWE-601US
03

affected products (3)

Products and version ranges known to be affected.

04

advisories (1)

Vendor and ecosystem advisories describing this.

  • GHSA-x56p-c8cg-q435Open Redirect in Next.js versions2020-10-08ghsa · osvUS

    ### Impact - **Affected**: Users of Next.js between 9.5.0 and 9.5.3 - **Not affected**: Deployments on Vercel ([https://vercel.com](https://vercel.com)) are not affected - **Not affected**: Deployments using `next export` We recommend everyone to upgrade regardless of whether you can reproduce the issue or not. ### Patches https://github.com/vercel/next.js/releases/tag/v9.5.4 ### References https://github.com/vercel/next.js/releases/tag/v9.5.4

05

also known as (3)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

cnnvdenisa_euvdnvdosvNVDCVE.orgMITRE
published 2020-10-08modified 2026-06-17
07

references (7)

External citations — patches, advisories, analysis.

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